2015年浙大考博专业基础课真题
浙江大学计算机考博考题操作系统 系统结构
浙江大学计算机考博考题操作系统系统结构一、判断题(选择一个最佳的答案, 每题3分,共１８分)1. 测量计算机对事务处理的性能，所用的测试基准程序（Benchmark）应该是：(a) Whetstone; (b) SPECint; (c)TPC-C; (d) SPECfp2.从汇编语言程序员的角度看, 下列哪个是不透明的:(a)cache; (b) 数据通路的宽度;(c) 虚拟存储器;(d)流水线3.某个应用程序运行所需要的最少存储空间为320页，每页32KBytes。
某计算机实际物理内存为256MBytes, 但250Mbytes的内存已被其它程序占用，硬盘的容量为40GBytes, 操作系统为该程序分配的虚拟内存地址空间应该是：(a) 6MBytes; (b) 10MBytes; (c) 256MBytes; (d)40GBytes4.某个由多处理器构成的服务器中, 每个处理器都有自己的存储器, 但所有存储器都统一编址, 这种结构属于:(a) UMA (b)NUMA (c)SMP (d)CLUSTER5. 某计算机采用了超标量流水线技术, 其指令级并行度为8（即平均每个时钟周期完成8条指令的执行）, 若已知该机采用了两条流水线, 其机器超流水线周期为:(a) 2个时钟周期; (b) 1个时钟周期; (c) 1/2个时钟周期; (d) 1/4个时钟周期;6.一台由8个磁盘构成的磁盘阵列，其冗余校验信息在某个磁盘中，所属的RAID级别是：(a) RAID0；(b) RAID1; (c)RAID3; (d) RAID5.二、问答题：(10分)1．RISC机和CISC机相比，提高性能的基本原理是什么? 在指令条数，CPI和时钟频率等方面，它提高性能的关键点在什么地方?(4分)....（３）（１０分）某种机器具有层次型存储结构，包含cache，内存和磁盘系统。
内存的平均存取时间50个时钟周期，磁盘的平均存取时间1,000,000个时钟周期。
浙江大学经济学院博士生博弈论课程习题及答案
纳什均衡1．在下表所示的战略式博弈中，找出重复删除劣战略的占优均衡表1.1首先，找出S2的劣战略。
对于S2，M策略严格劣于R策略，所以M为严格劣策略。
删除后M再找出S1的劣战略，显然对于S1而言，M策略和D策略严格劣于U策略，所以M和D为严格劣策略。
删除M与D后找占优均衡为（U,L）即，（4，3）。
2．求解下表所示的战略博弈式的所有的纯战略纳什均衡表1.2首先看S1选择X策略。
如果S2同样选择X策略，那么S3一定选择Y策略；同样，如果S3选择Y策略，S2也一定会选择X策略，因此（X，X，Y）是一个纳什均衡；如果S2选择Y策略，那么S3一定选择X策略；同样，如果S3选择X策略，S2也一定会选择Y策略，因此，（X，Y，X）是一个纳什均衡。
其次看S1选择Y策略。
如果S2选择X策略，S3一定选择X策略；同样，如果S3选择X策略，S2也一定会选择X策略，因此（Y，X，X）是一个纳什么均衡。
如果S2选择Y策略，S3选择Y策略是理性的，如果S3选择X，S2将选择X，这样（Y，Y，X）将不是一个纳什均衡；同样，如果S3选择Y策略，S2也一定会选择Y策略，因此（Y，Y，Y）是一个纳什均衡。
所以该博弈式的纯战略纳什均衡有4个：（X，X，Y）（X，Y，X）（Y，X，X）（Y，Y，Y）。
3．（投票博弈）假定有三个参与人（1、2和3）要在三个项目（A、B和C）中选中一个。
三人同时投票，不允许弃权，因此，每个参与人的战略空间Si=｛A，B，C｝。
得票最多的项目被选中，如果没有任何项目得到多数票，项目A被选中。
参与人的支付函数如下：U1(A)=U2(B)=U3(C)=2U1(B)=U2(C)=U3(A)=1U1(C)=U2(A)=U3(B)=0求解以上博弈的所有纯战略纳什均衡。
由上，ABC策略是无差异的，但均衡策略只能是参与人3选择A 策略，因此（A ，A ，A ）是一个纳什均衡。
如果参与人2选择B 策略，参与人3选择AB 策略是差异的，但均衡策略只能是其选择A ，因此（A ，B ，A ）是一个纳什均衡。
浙江大学生物化学2015年考博真题考博试卷
二、论述题 1、酮体是什么？在生物体内是怎样产生的？生体产生“酮症”的原因分析？
(10) 2、生物体内，酶活性的几种主要调控方式？(10) 3、氰化物会引起生物体“窒息死亡”，原因分析及其解救机制？(10) 4、第二信使学说是什么？第二信使主要有哪些物质？在研究一种激素的作用机
理时，分离到一种小分子物质，如何判断该物质是否为第二信使？(12) 5、原核生物和真核生物蛋白质合成过程的区别？(12) 6、有些人喝酒会脸红，目前的酒精探测仪是应用 alcohol dehydrogenase 酶电极
攻 读 博 士 学 位 研 究 生 入 学 考 试 试 卷
医学考博真题试卷
2015 年浙江大学生物化学博士研究生入学考试试题
专业：食品科学
科目：生物化学
代码：2703
一、名词解释(4*8) 底物水平磷酸化 isozyme 顺式作用元件 western blotting 脂肪酸的 α-氧化 zinc finger 转座子 Bohr 效应
对酒驾者呼出的气体进行检测。有部分人喝酒脸红后驾车，但是用酒精探测 仪检测时显示其呼出气体，酒精浓度未超标，请分析为什么会显示酒精浓度 未超标？如何对现行探测仪的酶电极进行改良，使对这一部分人进行酒驾检 测时，也能够检测出其为酒驾？(14)
浙江大学考博英语部分真题及其解析
浙江大学考博英语部分真题及其解析Section I Use of English(10%)Read the following text.Choose the best word or phrase for each numbered blank and ma,A,B,C or D on ANSWER SHEET1(客观答题卡).We suffer from a conspicuous lack of role models and shared causes. This is1of reason,I think,that many young Asian-Americans continue to assimilate quietly into America2as doctors,scientists and engineers.Our struggles are individual and familial but3communal or political.Ours is a frustratingly limited version of the AMERICAN Dr earr While I can strive for4into Harvard and become the talk of the Korean mothers in ml home town,God forbid that I aim much further and higher than that――5fame ant in fluence as a writer,an Geng duo yuan xiao wan zheng kao bo ying yu zhen ti ji qi jie xi huo kao bo fu dao ti yan qing lian xi quan guo mian fei zi xun dian hua:si ling ling liu liu ba liu jiu qi ba,huo jia zi xun qq:qi qi er liu qi ba wu san qi intellectual or perhaps president of the United States.I wish more than anything else to feel like part of something6than myself and m~personal ambitions,part of a larger culture. Unfortunately,by coming to America my parent,7the cultural legacy they would have passed on to me.When I visited8last summer,found that I was9and chastised by many people for never learning how to speak Korean and for turning my10on their culture.Taxi drivers would 11to stop for me and my Korean-American friends because they knew from our12where we had come from.And13,in spite of the17years I have spent in this country,I feel more acutely conscious than ever of the fact that I am not completely14.Recently,a black man called me a"littleChinese faggot"in a men's room,and a15woman on the street told me to"go back to Japan."Americans,I think,feel a(n)16to keep both Asians and Asian-Americans at asociological,philosophical and geographical distance.With17numbers of Asian-American18applying to top colleges,many white students have begun to complain aboutAsian-American19and competitiveness,calling us"Asian nerds."Many Americans consider this as part of a larger"Asian invasionf associated20Japan's export success in America.01.[A]one[B]part[C]much[D]some02.[A]country[B]city[C]land[D]society03.[A]hardly[B]frequently[C]approximately[D] always04.[A]scholarship[B]citizenship[C]admittance[D] integration05.[A]toward[B]near[C]between[D]among06.[A]more[B]better[C]larger[D]longer07.[A]sold[B]maintained[C]memorized[D]sacrificed08.[A]Japan[B]China[C]Korea[D]Thailand09.[A]scorned[B]respected[C]surprised[D]ignored10.[A]side[B]head[C]eyes[D]back11.[A]like[B]refuse[C]straggle[D]want12.[A]skin[B]clothes[C]faces[D]politeness13.[A]also[B]so[C]yet[D]then14.[A]hated[B]ignored[C]treated[D]welcome15.IAI homeless[B]careless[C]selfless[D]shameless16.[A]fear[B]need[C]interest[D]hate17.[A]growing[B]expanding[C]developing[D] enlarging18.[A]people[B]residents[C]students[D]foreigners19.,[Al diligence[B]laziness[C]hardship[D] stubbornness20.[A]for[B]to[C]with[D]atgection II Reading Comprehension(60%)Part A(40%)Read the following texts.Answer the questions below each text by choosing A,B,C or D.Mark your answers on ANSWER SHEET1(客观答题卡).Text1InfraGard is a grass-roots effort to respond to the need for cooperation and collaboration n countering the threat of cybercrime and terrorism to private businesses and the government.By the end of September,there will be InfraGard chapters in all50states, Calloway said.With advice from the FBI,each local chapter will be run by a board of directors that includes members of private industry,the academic community and public agencies.Banks,utilities,and other businessesand government agencies will use a secure Web site to share nformation about attempts to hack into their computer networks.Members can join the system!t no charge.A key feature of the system is a two-pronged method of reporting attacks.A"sanitized"description of a hacking attempt or other incident-one that doesn't reveal the name or ensitive information about the victim-can be shared with the other members to spot trends?hen a more detailed description also can be sent to the FBI's computer crimes unit to ietermine if there are grounds for an investigation.Cybercrime has jumped in recent years across the nation, particularly in hotbeds of financial cormmerce and technology like Charlotte."Ten years ago,all you needed to protect yourself was a safe,a fence and security officers,"said Chris Swecker,who is in charge of the FBI's Charlotte office."Now any business with a modem is subject to attack."FBE agents investigating computer hacking that disrupted popular Web sites including ,CNN and Yahoo!this year identified several North Carolina victims.The investigation has also identified computer systems in North Carolina used by hackers to commit such attacks.Prosecutions of hackers have been hampered by the reluctance of businesses to report security intrusions for fear of bad publicity and lost business.Meanwhile,too many corporations have made it tooeasy for criminals by sacrificing security for speed and accessibility.Jack Wiles,who will lead the local InfraGard chapter's board,said a recent report estimated97percent of all cybercrime goes undetected.Wiles,a computer security expert,has a firewall on his personal computer to prevent hackers from getting into his files."I get at least one report a day that somebody was trying to get into my computer,"he said."The Net is a wonderful place,but it's also a dangerous one."21.From the first paragraph,we know[A]InfraGard is a protective measure aga/nst cybercrime.[BI InfraGard is a measure of cooperation and collaboration.[C]there will be50InfraGard chapters in all states.[DJ private business and the government are now committing cybererime.22.Each local chapter of InfraGard will be run by the following EXCEPT[Al academic communities.[B]public agencies.[C]FBI.[D]private industry.23.By saying"too many corporations have made it too easy for criminals by sacrificing security for speed and accessibility"the author means[A]too many corporations take no notice of the security problem of computers.[B]criminals are sacrificing security for speed and accessibility.[C]it's very easy to sacrifice security for speed and accessibility.[D]many companies suffer from computer hacking because they value speed and accessibility more than security.24.All the following are reasons for the rise in cybercrime EXCEPT[A]victims won't report intrusions by hackers.[B]vi victims have no fkewalls.[C]the use of modem is increasing.[D]companies don't pay enough attention to Security.25.It can be concluded from the passage that[A]not all hacking attempts are worthy of investigation.[B]information of the victims is inaccessible.[C]InfraGard chapters will be in effect by the end of September.[D] was once disrupted by hacking.Text2The annual Phi Delta Kappa/Gallup poll of attitudes towards public education releasedthis week found that a majorty of Americans feel t is important to put"a qualified,competent teacher in every classroom".Bob Chase,president of the National EducationAssociation(NEA),the main teachers'union,wasted no time in pointing out that this will require raising teachers'salaries so that more qualified candidates will enter the profession and stay there.A study by two economists suggests that the quality of America's teachers has more to do with how they are paid rather than how much. The pay of American public-school teachers isnot based on any measure of performance;instead,it is determined by a rigid formula based on experience and years of schooling,factors massively unimportant in deciding how well students do.The uniform pay scale invites what economists call adverse selection.Since the most talented teachers are also likely to be good at other professions,they have a strong incentive to leave education for jobs in which pay is more closely linked to productivity.For dullards,the incentives are just the opposite.The data are striking:when test scores are used as a proxy for ability,the bright est individuals shun the teaching profession at every juncture.Clever students are the least like lyto choose education as a major at university.Among students who do major in education,those with higher test scores are less likely to become teachers.And among individuals who enterteaching,those with the highest test scores are the most likely to leave the profession early.The study takes into consideration the effects of a nationwide 20%real increase in teacher salaries during the1980s.It concludes that it had no appreciable effect on overall teacher quality,in largepart because schools do a poor job of.recruiting and-selecting the best teachers.Also,even if higher salaries lure more qualified candidates into the profession,the overall effect on quality may be offset by mediocre teachers who choose to postpone retirement.The study also takes aim at teacher training.Every state requires that teachers be licensed,a process that can involve up to two years of education classes,even for those who have auniversity degree or a graduate degree in the field they would like to teach.Inevitably, this system does little to lure in graduates of top universities or professionals who would like to enter teaching at mid-career.26.Which statement is NOT TRUE according to the passage?[A]NEA is the largest society for teachers.[B]Education-majored students are not as wise as people have assumed.[C]Young teachers are paid less because their students don't do well enough.[D]The study is both concerned with the effects of rise in payment and teacher training.27.Increase in teacher salaries did not turn out so effective mainly because of the following reasons EXCEPT.[A]the authorities do not set standards for qualified teachers.[BI mediocre teachers postpone retirement.[C]the salaries were not attractive enough.[D]teachers didn't have equal opportunities.28.According to the passage,the reason for clever students' refusal to take teaching as profession is because.[A]it offers low pay.[B]they have interest in other professions.[C]it does not value productivity.[D]it uses poor recruiting strategies.29."The data are striking:when the brightest individuals shun the teaching profession at every juncture"means.[A]students doing well in study are willing to take teaching as a career.[B]students doing well in study can't avoid choosing teaching as a career.[C]students doing well in study are reluctant to be teachers.[D]students doing well in study are not reluctant to be teachers.30.All can be concluded BUT.[A]teaching in U.S.A needs a certificate.[B]the more outstanding one is,the more likely he is to choose teaching.[C]American public-school teachers are paid in proportion to experience and years of schooling.[D]increase in teacher's salaries is to attract more qualified candidates to teaching.Text3The Nobel prize in economics had a difficult birth.It was createdin1969to mimic thefive prizes initiated under Alfred Nobel's will. These had already been around for68years,andpurists fought hard to stop the newcomer.Some members of the Royal Swedish Academy ofSciences still dismiss economics as unscientific,and its prize as not a proper Nobel.Earlywinners were among the prize's fiercest critics.Gunnar Myrdal,who shared the award in1974,said the prize ought to be abolished(but he did not return the money).Milton Friedman,winnerin1976,doubted the ability of a few people in Stockholm to make decisions respected aroundthe world.By the1990s,the Nobel committee had gained a reputation for intransigence.Gary Becker won only after a flood of nominations forced the cabal in Stockholm to act.The father of game theory won only after Mr.Nash's sudden recovery from paranoid schizophrenia,though the disease had no bearing on the quality of his work,the best of which was done beforehe became ill.Robert Lucas received a prize that many economists believed he should have hadmuch earlier.In1998,the prize became the subject of countless jokes after the collapse of Long-Term Capital Management,a hedge-fund firm whose founders included Robert Mertonand Myron Scholes,the1997 Nobel laureates.The Merton/Scholes choice also highlighted another enduring problem with the prize:untimely deaths.Fischer Black, co-originator of the options-pricing model for which MessrsMerton and Scholes were recognised,died a year too soon to join his collaborators on st year,many economists hoped that ZviGriliches,a noted econometrician who wasunquestionably deserving of the prize,and was suffering from a long illness,would win.He didnot, and died soon afterwards.Because the prize came into being so late, there is still a backlogof elderly luminaries waiting to be recognised. Paul Samuelson,one of the younger winners,and Mr Becker,who was a friend of Griliches,want the committee to take old age explicitlyinto account.The committee could also cast its net more widely across the profession.Almost ail the laureates are also theoreticians;advances in empirical work and applications in the past two decades have yet to be paid due respect,a fact bemoaned by Mr Becker.Mr Samuelson adds that the economics committee's selection methods have excessively mimicked those used for the prizes in natural sciences: "If the right apple fell on your head,and you saw it,then you got the prize.But if you had a lifetime of excellence in all branches of physics,you didn't get it."31.From the first paragraph,we learned that.[A]the Nobel prize in economics was created under Alfred Nobel's will.[B]Gunnar Myrdal was one of the Nobel prize winners in economics.[C]Milton Friedman refused to accept the prize.[D]the Nobel committee had not the ability to make decisions.32.We can learn from the text that about the winners of the Nobel prize in economics during1990s,.[A]Gary Becker won the prize after he forced the committee to act.[B]Mr Nash's illness delayed his receiving of the prize.[C]obert Lucas received the prize earlier than expected.[D]Robert Merton and Myron Scholes played jokes on the prize.33.According to the text,the author's attitude toward Nobel prize in economics is.[A]doubtful.[B]positive.[C]hostile.[DJ indifferent.34.From the third paragraph,we learn that.[A]Fisher Black did not live long enough to win the Nobel prize.[B]the Nobel committee will soon take old age into account.[C]younger people are more likely to win the prize.[D]Zvi Griliches won the prize after he died.35.In the last paragraph of the text,Mr Samuelson's attitude toward the economics committee's selection methods is.[A]critical.[B]approving.[C]angry.[D]ironic.Text4In America alone,tipping is now a$16billion-a-year industry-all the more surprising since it is a behavioural oddity.Consumers acting rationally ought not to pay more than they have to for a given service,Tips,which are voluntary,above and beyond a service's contracted cost,and delivered afterwards,should not exist.So why do they?The conventional wisdom is that tips both reward the efforts of good service and reduce uncomfortable feelings of inequality.The better the service,the bigger the tip.A paper analysing data from2,547groups dining at20different restaurants shows that the correlation between larger tips and better service was very weak:only a tiny part of the variability in the size of the tip had anything to do with the quality of service.Customers who rated a meal as"excellent"still tipped anywhere between8%and 37%of the meal price.Tipping is better explained by culture than by economics.In America,the custom hasbecome institutionalised:it is regarded as part of the accepted cost of a service.In a New Yorkrestaurant, failing to tip at least15%could well mean abuse from the waiter. Hairdressers canexpect to get15-20%,the man who delivers your groceries$2.In Europe,tipping is lesscommon;in many restaurants, discretionary tipping is being replaced by a standard servicecharge. In many Asian countries,tipping has never really caught on at all.How to account for these national differences?Look no further than psychology.According to Michael Lynn,the Cornell paper'sco-author,countries in which people are moreextrovert,sociable orneurotic tend to tip more.Tipping relieves anxiety about being served bystrangers:And,says'Mr Lynn,"in America,where people are outgoing and expressive,tippingis about social approval.If you tip badly,people think less of you.Tipping well is a chance to show off." Icelanders,by contrast,do not usually tip-a measure of their introversion and lackof neuroses,no doubt.While such explanations may be crude,the hard truth seems to be that tipping does notwork.It does not benefit the customer.Nor,in the case of restaurants,does it actuallyincentivise the waiter,or help the restaurant manager to monitor and assess his staff.The cry ofstingy tippers that service people should"just be paid a decent wage"may actually makeeconomic sense.36.From the text we learn that Americans.[A]are willing to give tips because they love the practice.[B]like to givetips to service people to help them financially.[C]are reluctant to give tips,but they still do so.[D]are giving less and less tips.37.According to Paragraph3,we learn that.[A]tips are voluntary in America.[B]people don't tip in Europe.[C]tipping is rare in many Asian countries.[D]tipping is now popular in Iceland.38.According to Michael Lynn,.[A]nervous people do not usually tip.[B]A merican people are anxious.[C]Icelanders don't like to show off.[D]people will ignore you if you tip bakly.39.The text indicates that in America.[A]customers tip8%to37%of the meal price if a meal was "excellent".[B]a waiter can abuse a customer if he fails to tip15%.[C]the amount of tipping is standardized with different services.[D]the man who carry groceries for you can expect to get15-20%.40.According to the text,the author believes that in America.[A]the better the service,the bigger the tip.[BI tips can reward the effort of good service.[C]tips can reduce feelings of inequality.[D]tips cannot prompt better service.Part B(20%)slation shouM be written clearly on ANSWER SHEET2(主观答题纸).(41)There are plenty of grim statistics about childhood in the Third World.showing thatthe journey for survival is long and hard. But in the rich world,children can suffer from adifferent kind of poverty-of the spirit.For instance,one Western country alone now sees14,000attempted suicides every year by children under15,and one child in five needsprofessional psychiatric counselling.There are many good things about childhood in the Third World.Take the close andconstant contact between children and their parents, relatives and neighbours.In the West,the very nature of work puts distance between adults and children.(42)But itl most Third World villages mother and father do not go miles away each day to do abstract work in offices,shuffling paper to make money mysteriously appear in banks.Instead.the child sees mother an(t father,relations and neighbours working nearby,and often shares in that work.A child growing up in this way learns his or her role through participating in the community's work:helping to dig or build,plant or water,tend to animals or look after babies-rather than through playing with water and sand in kindergarten,building with construction toys,keeping pets or playing with dolls.(43)These children may grow up with a less oppressive limitation of space and time than their Western counterparts.Set days and times are few and self-explanatory,determined mostly by the rhythm of the seasons and the different jobs they bring.(44)A child in the rich world,on the other hand.is provided with a wrist-watch as one of the earliest symbols of~owing up.so that he or she can worry,along with their parents about being late for school times,meal times clinic times,bed times,the times of TV shows……;Third World children are not usually cooped up indoors,still less in high-rise apartments.Instead of fenced-off play areas,dangerous roads,'keep off the grass'signs and'don't speak tostrangers',there is often a sense of freedom to play.(45)Parents can see theirchildren outsiderather than observe them anxiously from ten floors up.And other adults in the community canusually be counted on to be caring rather than indifferent or threatening.Of course twelve million children under five still die every year through malnutrition anddisease.But children in the Third World is not all bad.Section m Writing(30%)Teachers often consider some students as good students.What do you think good studentsare like?Describe the characteristics of good students according to your own opinion.Provideone or two examples where necessary.You may also need to use knowledge in education andpsychology to support your argument.You shouM write240-280words. Write your essay on ANSWER SHEET2(主观答题纸).[供报考学科教学（英语）专业考生使用][A卷]答案：e of English（10%）01.B02.D03.A04.C05.A06.C07.D08.C09.A 10.D11.B12.B13.C14.D15.A16.B17.A18.C19.A 20.CII.Reading comprehension（60%）21.A22.C23.D24.B25.A26.C27.A28.C29.C 30.B31.B32.B33.A34.A35.A36.C37.C38.C39.C 40.DPart B（20%）41.有关第三世界儿童成长的大量统计资料令人担忧。
2015考博真题
一、单选1×50
上下尖牙区别
monson球面的半径
下颌神经前支中的感觉神经
前牙切割运动的杠杆运动形式
单囊性成釉细胞瘤处理方式
腺淋巴瘤病理特点
舌下腺结构
放射性骨髓炎病理表现
翼下颌间隙内容
下颌运动特点
下颌体骨化中心
颞下颌关节手术时切口方式
牙受垂直向力时牙龈主纤维中不受力的是
（以后想起来再补充）
二、名解2×10
近唇线角
pterygoid process
Terra dentition index
mento-cervical angle
taste threshold
alveolar bone proper
candidiasis
chronic gingivitis
branchial cleft cyst
lymphoepithelial carcinoma
三、简答5×6
解剖
1.根管系统在根部侧面开口的系统名称，并从解剖角度解释牙周病和牙髓病的相互影响。
2.口颌系统肌链的组成与功能？
3.临床上面神经的解剖方法，面神经主干的解剖标志点？
病理
1.口腔黏膜鳞癌有很多亚型，请举3例口腔黏膜鳞癌亚型，并叙述其镜下特点及生物学行为？
2.根据牙骨质组织结构学特性，叙述牙骨质龋特点？
3.肌上皮细胞来源的唾液腺良恶性肿瘤各举两例，及其镜下鉴别要点。
2015年医学博士外语真题试卷
2015年医学博士外语真题试卷(总分：206.00，做题时间：90分钟)1.Section A（分数：10.00）__________________________________________________________________________________________ （分数：10.00）A.How to deal with his sleeping problem.B.The cause of his sleeping problem.C.What follows his insomnia.D.The severity of his medical problem.A.To take the medicine for a longer time.B.To discontinue the medication.C.To come to see her again.D.To switch to other medications.A.To take it easy and continue to work.B.To take a sick leave.C.To keep away from work.D.To have a follow-up.A.Fullness in the stomach.B.Occasional stomachache.C.Stomach distention.D.Frequent belches.A.Extremely severe.B.Not very severe.C.More severe than expected.D.It's hard to say.（分数：10.00）A.He has lost some weight.B.He has gained a lot.C.He needs to exercise more.D.He is still overweight.A.She is giving the man an injection.B.She is listening to the man's heart.C.She is feeling the man's pulse.D.She is helping the man stop shivering.A.In the gym.B.In the office.C.In the clinic.D.In the boat.A.Diarrhea.B.Vomiting.C.Nausea.D.A cold.A.She has developed allergies.B.She doesn't know what allergies are.C.She doesn't have any allergies.D.She has allergies treated already.（分数：10.00）A.Listen to music.B.Read magazines.C.Go play tennis.D.Stay in the house.A.She isn't feeling well.B.She is under pressure.C.She doesn't like the weather.D.She is feeling relieved.A.Michael's wife was ill.B.Michael's daughter was ill.C.Michael's daughter gave birth to twins.D.Michael was hospitalized for a check-up.A.She is absent-minded.B.She is in high spirits.C.She is indifferent.D.She is compassionate.A.Ten years ago.B.Five years ago.C.Fifteen years ago.D.Several weeks ago.2.Section B（分数：10.00）__________________________________________________________________________________________ （分数：10.00）A.A blood test.B.A gastroscopy.C.A chest X-ray exam.D.A barium X-ray test.A.To lose some weight.B.To take a few more tests.C.To sleep on three pillows.D.To eat smaller, lighter meals.A.Potato chips.B.Chicken.C.Cereal.D.Fish.A.Ulcer.B.Cancer.C.Depression.D.Hernia.A.He will try the diet the doctor recommended.B.He will ask for a sick leave and relax at home.C.He will take the medicine the doctor prescribed.D.He will take a few more tests to rule out cancer.（分数：10.00）A.A new concept of diabetes.B.The definition of Type 1 and Type 2 diabetes.C.The new management of diabetics in the hospital.D.The new development of non-perishable insulin pills.A.Because it vaporizes easily.B.Because it becomes overactive easily.C.Because it is usually in injection form.D.Because it is not stable above 40 degrees Fahrenheit.A.The diabetics can be cured without taking synthetic insulin any longer.B.The findings provide insight into how insulin works.C.Insulin can be more stable than it is now.D.Insulin can be produced naturally.A.It is stable at room temperature for several years.B.It is administered directly into the bloodstream.C.It delivers glucose from blood to the cells.D.It is more chemically complex.A.Why insulin is not stable at room temperature.B.How important it is to understand the chemical bonds of insulin.C.Why people with Type 1 and Type 2 diabetes don't produce enough insulin.D.What shape insulin takes when it unlocks the cells to take sugar from blood.（分数：10.00）A.Vegetative patients are more aware.B.Vegetative patients retain some control of their eye movements.C.EEG scans may help us communicate with the vegetative patients.D.We usually communicate with the brain-dead people by brain-wave.A.The left-hand side of the brain.B.The right-hand side of the brain.C.The central part of the brain.D.The front part of the brain.A.31.B.6.C.4.D.1A.The patient was brain-dead.B.The patient wasn't brain-dead.C.The patient had some control over his eye movements.D.The patient knew the movement he or she was making.A.The patient is no technically vegetative.B.The patient can communicate in some way.C.We can train the patient to speak.D.The family members and doctors can provide better care.3.Section A（分数：2.00）__________________________________________________________________________________________4.Despite his doctor's note of caution, he never______from drinking and smoking.（分数：2.00）A.retainedB.dissuadedC.alleviatedD.abstained5.People with a history of recurrent infections are warned that the use of personal stereos with headsets is likelyto______their hearing.（分数：2.00）A.rehabilitateB.jeopardizeC.tranquilizeD.supplement6.Impartial observers had to acknowledge that lack of formal education did not seem to______Larry in any way in his success.（分数：2.00）A.refuteB.ratifyC.facilitateD.impede7.When the supporting finds were reduced, they should have revised their plan______.（分数：2.00）A.accordinglyB.alternativelyC.considerablyD.relatively8.It is increasingly believed among the expectant parents that prenatal education of classical music can______future adults with appreciation of music.（分数：2.00）A.acquaintB.familiarizeC.endowD.amuse9.If the gain of profit is solely due to rising energy prices, then inflation should be subsided when energy prices______. （分数：2.00）A.level outB.stand oute offD.wear off10.Heat stroke is a medical emergency that demands immediate______from qualified medical personnel.（分数：2.00）A.prescriptionB.palpationC.interventionD.interposition11.Asbestos exposure results in Mesothelioma, asbestosis and internal organ cancers, and______of these diseases is often decades after the initial exposure.（分数：2.00）A.offsetB.intakeC.outletD.onset12.Ebola, which spreads through body fluid or secretions such as urine, ______and semen, can kill up to 90% of those infected.（分数：2.00）A.salineB.salivaC.scabiesD.scrabs13.The newly designed system is______to genetic transfections, and enables an incubation period for studying various genes.（分数：2.00）parableB.transmissibleC.translatableD.amenable14.Section B（分数：2.00）__________________________________________________________________________________________15.Every year more than 1, 000 patients in Britain die on transplant waiting lists, prompting scientists to consider other ways to produce organs.（分数：2.00）A.propellingB.prolongingC.puzzlingD.promising16.Improved treatment has changed the outlook of HIV patients, but there is still a serious stigma attached to AIDS. （分数：2.00）A.disgraceB.discriminationC.harassmentD.segregation17.Surviviors of the shipwreck were finally rescued after their courage of persistence lowered to zero by their physical lassitude .（分数：2.00）A.depletionB.dehydrationC.exhaustionD.handicap18.Scientists have invented a 3D scan technology to read the otherwise illegible wood-carved stone, a method that may apply to other areas such as medicine.（分数：2.00）A.negativeB.confusingC.eloquentD.indistinct19.Top athletes scrutinize both success and failure with their coach to extract lessons from them, but they are never distracted from long-term goals.（分数：2.00）A.anticipateB.clarifyC.examineD.verify20.His imperative tone of voice reveals his arrogance and arbitrariness.（分数：2.00）A.challengingB.solemnC.hostileD.demanding21.The discussion on the economic collaboration between the United States and the European Union may be eclipsed by the recent growing trade friction.（分数：2.00）A.erasedB.triggeredC.shadowedD.suspended22.Faster increases in prices foster the belief that the future increases will be also stronger, so that higher prices fuel demand rather than quench it.（分数：2.00）B.eliminateC.assimilateD.puncture23.Some recent developments in photography allow animals to be studied in previously inaccessible places and in unprecedented detail.（分数：2.00）A.unpredictableB.unconventionalC.unparalleledD.unexpected24.A veteran negotiation specialist should be skillful at manipulating touchy situation.（分数：2.00）A.estimatingB.handlingC.rectifyingD.anticipating五、PartⅢ Cloze(总题数：1，分数：20.00)A mother who is suffering from cancer can pass on the disease to her unborn child in extremely rare cases,【C1】______a new case report published in PNAS this week. According to researchers in Japan and at the Institute for Cancer Research in Sutton, UK, a Japanese mother had been diagnosed with leukemia a few weeks after giving birth,【C2】______tumors were discovered in her daughter's cheek and lung when she was 11 months old. Genetic analysis showed that the baby's cancer cells had the same mutation as the cancer cells of the mother. But the cancer cells contained no DNA whatsoever from the father,【C3】______would be expected if she had inherited the cancer from conception. That suggests the cancer cells made it into the unborn child's body across the placental barrier. The Guardian claimed this to be the first【C4】______case of cells crossing the placental barrier. But this is not the case — microchimerism,【C5】______cells are exchanged between a mother and her unborn child, is thought to be quite common, with some cells thought to pass from fetus to mother in about 50 to 75 per cent of cases and to go the other way about half【C6】______. As the BBC pointed out, the greater【C7】______in cancer transmission from mother to fetus had been how cancer cells that have slipped through the placental barrier could survive in the fetus without being killed by its immune system. The answer, in this case at least, lies in a second mutation of the cancer cells, which led to the【C8】______of the specific features that would have allowed the fetal immune system to detect the cells as foreign. As a result, no attack against the invaders was launched. 【C9】______, according to the researchers there is little reason for concern of "cancer danger". Only 17 probable cases have been reported worldwide and the combined【C10】______of cancer cells both passing the placental barrier and having the right mutation to evade the baby's immune system is extremely low.（分数：20.00）(1).【C1】（分数：2.00）A.suggestsB.suggestingC.having suggestedD.suggested(2).【C2】（分数：2.00）A.sinceB.althoughC.whereasD.when(3).【C3】（分数：2.00）A.whatB.whomD.as(4).【C4】（分数：2.00）A.predictedB.notoriousC.provenD.detailed(5).【C5】（分数：2.00）A.whereB.whenC.ifD.whatever(6).【C6】（分数：2.00）A.as manyB.as muchC.as wellD.as often(7).【C7】（分数：2.00）A.threatB.puzzleC.obstacleD.dilemma(8).【C8】（分数：2.00）A.detectionB.deletionC.amplificationD.addition(9).【C9】（分数：2.00）A.ThereforeB.FurthermoreC.NeverthelessD.Conclusively(10).【C10】（分数：2.00）A.likelihoodB.functionC.influenceD.flexibility六、PartⅣ Reading Comprehension(总题数：6，分数：60.00)The American Society of Clinical Oncology wrapped its annual conference this week, going through the usual motions of presenting a lot of drugs that offer some added quality or extension of life to those suffering from a variety of as-yet incurable diseases. But buried deep in an AP story are a couple of promising headlines that seems worthy of more thorough review, including one treatment study where 100 percent of patients saw their cancer diminish by half. First of all, it seems pharmaceutical companies are moving away from the more cost-effective one-size-fits-all approach to drug development and embracing the long tail of cancer treatments, engineering drugs that only work for a small percentage of patients but work very effectively within that group. Pfizer announced that one such drug it's pushing into late-stage testing is target for 4% of lung cancer patients. But more than 90% of that tiny cohort responded to the drug in initial tests, and nine out often is getting pretty close to the ideal ten out of ten. By gearing drugs toward more boutique treatments rather than broad umbrella pharmaceuticals that try to fit for everyone it seems cancer researchers are making some headway. But how can we close the gap on that remaining ten percent? Ask Takeda Pharmaceutical and Celgene, two drug makers who put aside competitive interests to test a novel combination of their treatments. In atest of 66 patients with the blood disease multiple myeloma, a full 100 percent of the subjects saw their cancer reduced by half. Needless to say, a 100 percent response to a cancer drug (or in this case a drug cocktail) is more or less unheard of. Moreover, this combination never would've been tried if two competing companies hadn't sat down and put their heads together. Are there more potentially effective drug combos out there separated by walls of competitive interest and proprietary information? Who's to say, but it seems like with the vast amount of money and research being pumped into cancer drug development, the odds are pretty good. And if researchers can start pushing more of their response numbers toward 100 percent, we can more easily start talking about oncology's favorite four-letter word: cure.（分数：10.00）(1).Which of the following can be the best title for the passage?（分数：2.00）petition and CooperationB.Two Competing Pharmaceutical CompaniesC.The Promising Future of PharmaceuticalsD.Encouraging News: a 100% Response to a Cancer Drug(2).In cancer drug development, according to the passage, the pharmaceuticals now______.（分数：2.00）A.are adopting the cost-effective one-size-fits-all approachB.are moving towards individualized and targeted treatmentsC.are investing the lion's shares of their moneyD.care only about their profits(3).From the encouraging advance by the two companies, we can infer that______.（分数：2.00）A.the development can be ascribed to their joint efforts and collaborationB.it was their competition that resulted in the accomplishmentC.other pharmaceuticals will join them in the researchD.the future cancer treatment can be nothing but cocktail therapy(4).From the last paragraph it can be inferred that the answer to the question______.（分数：2.00）A.is nowhere to be foundB.can drive one crazyC.can be multipleD.is conditional(5).The tone of the author of this passage seems to be______.（分数：2.00）A.neutralB.criticalC.negativeD.optimisticLiver disease is the 12th -leading cause of death in the U. S. , chiefly because once it's determined that a patient needs a new liver it's very difficult to get one. Even in case where a suitable donor match is found, there's no guarantee a transplant will be successful. But researchers at Massachusetts General Hospital have taken a huge step toward building functioning livers in the lab, successfully transplanting culture-grown livers into rats. The livers aren't grown from scratch, but rather within the infrastructure of a donor liver. The liver cells in the donor organ are washed out with a detergent that gently strips away the liver cells, leaving behind a biological scaffold of proteins and extracellular architecture that is very hard to duplicate synthetically. With all of that complicated infrastructure already in place, the researchers then seeded the scaffold (支架) with liver cells isolated from healthy livers, as well as some special endothelial cells to line the bold vessels. Once repopulated with healthy cells, these livers lived in culture for 10 days. The team also transplanted some two-day-old recellularized livers back into rats, where they continued to thrive for eight hours while connected into the rats' vascular systems. However, the current method isn't perfect and cannot seem to repopulate the blood vessels quite densely enough and the transplanted livers can't keep functioning for more than about 24 hours (hence the eight-hour maximum for the rat transplant). But the initial successes are promising, and the team thinks they can overcome the blood vessel problem and get fully functioning livers into rats within two years. It still might be a decade before the tech hits the clinic, but if nothing goes horribly wrong — and especially if stem-cell research establishes a reliable way to create healthy liver cells from the very patients who need transplants — lab-generated livers that are perfect matches for their recipients could become a reality.（分数：10.00）(1).It can be inferred from the passage that the animal model was mainly intended to______.（分数：2.00）A.investigate the possibility of growing blood vessels in the labB.explore the unknown functions of the human liverC.reduce the incidence of liver disease in the U. S.D.address the source of liver transplants(2).What does the author mean when he says that the livers aren't grown from scratch?（分数：2.00）A.The making of a biological scaffold of proteins and extracellular architecture.B.A huge step toward building functioning livers in the lab.C.The building of the infrastructure of a donor liver.D.Growing liver cells in the donor organ.(3).The biological scaffold was not put into the culture in the lab until______.（分数：2.00）A.duplicated syntheticallyB.isolated from the healthy liverC.repopulated with the healthy cellsD.the addition of some man-made blood vessels(4).What seems to be the problem in the planted liver?（分数：2.00）A.The rats as wrong recipients.B.The time point of the transplantation.C.The short period of the recellularization.D.The insufficient repopulation of the blood vessels.(5).The research team holds high hopes of______.（分数：2.00）A.creating lab-generated livers for patients within two yearsB.the timetable for generating human livers in the labC.stem-cell research as the future of medicineD.building a fully functioning liver into ratsPatients whose eyes have suffered heat or chemical burns typically experience severe damage to the cornea—the thin, transparent front of the eye that refracts light and contributes most of the eye's focusing ability. In a long-term study, Italian researchers use stem cells taken from the limbus, the border between the cornea and the white of the eye, to cultivate a graft of healthy cells in a lab to help restore vision in eyes. During the 10-years study, the researchers implanted the healthy stem cells into the damaged cornea in 113 eyes of 112 patients. The treatment was fully successful in more than 75 percent of the patients, and partially successful in 13 percent. Moreover, the restored vision remained stable over 10 years. Success was defined as an absence of all symptoms and permanent restoration of the cornea. Treatment outcome was initially assessed at one year, with up to 10 years of follow-up evaluations. The procedure was even successful in several patients whose burn injuries had occurred years earlier and who had already undergone surgery. Current treatment for burned eyes involves taking stem cells from a patient's healthy eye, or from the eyes of another person, and transferring them to the burned eye. The new procedure, however, stimulates the limbal stem cells from the patient's own eye to reproduce in a lab culture. Several types of treatments using stem cells have proven successful in restoring vision, but the long-term effectiveness shown here is significant. The treatment is only for blindness caused by damage to the cornea; it is not effective for repairing damaged retinas or optic nerves. Chemical eye burns often occur in the workplace, but can also happen due to mishaps involving household cleaning products and automobile batteries. The results of the study, based at Italy's University of Modena and Reggio Emilia, were published in the June 23 online issue of the New England Journal of Medicine.（分数：10.00）(1).What is the main idea of this passage?（分数：2.00）A.Stem cells can help restore vision in the eyes blinded by burns.B.The vision in the eyes blinded by burns for 10 years can be restored.C.The restored vision of the burned eyes treated with stem cells can last for 10 years.D.The burned eyes can only be treated with stem cells from other healthy persons.(2).The Italian technique reported in this passage______.（分数：2.00）A.can repair damaged retinasB.is able to treat damaged optic nervesC.is especially effective for burn injuries in the eyes already treated surgicallyD.shows a long-term effectiveness for blindness in vision caused by damage to cornea(3).Which of the following is NOT mentioned about eye burns?（分数：2.00）A.The places in which people work.B.The accidents that involve using household cleaning products.C.The mishaps that involve vehicles batteries.D.The disasters caused by battery explosion at home.(4).What is one of the requirements for the current approach?（分数：2.00）A.The stem cells taken from a healthy eye.B.The patient physically healthy.C.The damaged eye with partial vision.D.The blindness due to damaged optic nerves.(5).Which of the following words can best describe the author's attitude towards the new method?（分数：2.00）A.Sarcastic.B.Indifferent.C.Critical.D.Positive.Here is a shaming statistic: divide the US by race, sex and county of residence, and differences in average life expectancy across the various groups can exceed 30 years. The most disadvantaged look like denizens of a poor African country: a boy born on a Native American reservation in Jackson County, South Dakota, for example, will be lucky to reach his 60th birthday. A typical child in Senegal can expect to live longer than that. America is not alone in this respect. While the picture is extreme in other rich nations, health inequalities based on race, sex and class exist in most societies—and are only partly explained by access to healthcare. But fresh insights and solutions may soon be at hand. An innovative project in Chicago to unite sociology and biology is blazing the trail (开创), after discovering that social isolation and fear of crime can help to explain the alarmingly high death rate from breast cancer among the city's black women. Living in these conditions seems to make tumors more aggressive by changing gene activity, so that cancer cells can use nutrients more effectively. We are already familiar with the lethal effect of stress on people clinging to the bottom rungs of the societal ladder, thanks to pioneering studies of British civil servants conducted by Michael Marmot of University College London. What's exciting about the Chicago project is that it both probes the mechanisms involved in a specific disease and suggests precise remedies. There are drugs that may stave tumors of nutrients and community coordinators could be employed to help reduce social isolation. Encouraged by the US National Institutes of Health, similar projects are springing up to study other pockets of poor health in populations ranging from urban black men to white poor women in rural Appalachia. To realize the full potential of such projects, biologists and sociologists will have to start treating one other with a new respect and learn how to collaborate outside their comfort zones. Too many biomedical researchers still take the arrogant view that sociology is a "soft science" with little that's serious to say about health. And too many sociologists reject any biological angle—fearing that their expertise will be swept aside and that this approach will be used to bolster discredited theories of eugenics, or crude race-based medicine. It's time to drop these outdated attitudes and work together for the good of society's most deprived members. More important, it's time to use this fusion of biology and sociology to inform public policy. This endeavor has huge implications, not least in cutting the wide health gaps between blacks and whites, rich and poor.（分数：10.00）(1).As shown in the 1st paragraph, the shaming statistic reflects______.（分数：2.00）A.injustice everywhereB.racial discriminationC.a growing life spanD.health inequalities(2).Which of the following can have a negative impact on health according to the Chicago-based project?（分数：2.00）A.Where to live.B.Which race to belong to.C.How to adjust environmentally.D.What medical problem to suffer.(3).The Chicago-based project focuses its management on______.（分数：2.00）A.a particular medical problem and its related social issueB.racial discrimination and its related social problemsC.the social ladder and its related medical conditionsD.a specific disease and its medical treatment(4).Which of the following can most probably be neglected by sociologists?（分数：2.00）A.The racial perspective.B.The environmental aspect.C.The biological dimension.D.The psychological angel.(5).The author is a big fan of______.（分数：2.00）A.the combination of a traditional and new way of thinking in promoting healthB.the integration of biologists and sociologists to reduce health inequalitiesC.the mutual understanding and respect between racesD.public education and health promotionAmerican researchers are working on three antibodies that many mark a new step on the path toward an HIV vaccine, according to a report published online Thursday, July 8, 2010, in the journal Science. One of the antibodies suppresses 91 percent of HIV strains, more than any AIDS antibody ever discovered, according to a report on the findings published in the Wall Street Journal. The antibodies were discovered in the cells of a 60-year-old African-American gay man whose body produced them naturally. One antibody in particular is substantially different from its precursors, the Science study says. The antibodies could be tried as a treatment for people already infected with HIV, the WSJ reports. At the very least, they might boost the efficacy of current antiretroviral drugs. It is welcome news for the 33 million people the United Nations estimated were living with AIDS at the end of 2008. The WSJ outlines the painstaking method the team used to find the antibody amid the cells of the African-American man, known as Donor 45. First they designed a probe that looks just like a spot on a particular molecule on the cells that HIV infects. They used the probe to attract only the antibodies that efficiently attack that spot. They screened 25 million of Donor 45's cell to find just 12 cells that produced the antibodies. Scientists have already discovered plenty of antibodies that either don't work at all or only work on a couple of HIV strains. Last year marked the first time that researchers found "broadly neutralizing antibodies, " which knock out many HIV strains. But none of those antibodies neutralized more than about 40 percent of them, the WSJ says. The newest antibody, at 91 percent neutralization, is a marked improvement. Still, more work needs to be done to ensure the antibodies would activate the immune system to produce natural defenses against AIDS, the study authors say. They suggest three test methods that blend the three new antibodies together in raw form to prevent transmission of the virus, such as from mother to child; in a microbicide gel that women or gay men could use before sex to prevent infection; or as a treatment for HIV/AIDS, combined with antiretroviral drug. If the scientists can find the right way to stimulate production of the antibodies, they think most people could produce then, the WSJ says.（分数：10.00）(1).We can learn from the beginning of the passage that______.（分数：2.00）A.a newly discovered antibody defeats 91 % of the HIV strainsB.a new antiretroviral drug has just come on the marketC.American researchers have developed a new vaccine for HIVD.the African-American gay man was cured of his HIV infection(2).What is the implication of the antibodies discovered in the cells of the African-American gay man?（分数：2.00）A.They can cure the 33 million AIDS patients in the world.B.They may strengthen the effects of the existing antiretroviral drugs.C.They will kill all the HIV viruses.D.They will help make a quick diagnosis of an HIV infection.(3).The newest antibody found in Donor 45 reflects a dramatic advance in terms of______.（分数：2.00）A.pathologyB.pharmacologyC.HIV neutralizationD.HIV epidemiology(4).According to the study authors, the three test methods are intended to______.（分数：2.00）。
2015浙江大学832(真情版)
2015 年攻读硕士学位研究生入学考试试题
考试科目 机械设计基础 编号 832
一、选择填空题（每小题 2 分，共 30 分） 1、导向平键（动联接）的主要失效形式是_______。D A.键受剪切破坏 B.轮毂受剪切破坏 C.工作面受挤压破坏 D.工作 面过度磨损 2、采用表面热处理，能提高轴的（） 。C A.静强度 B.刚度 C.疲劳强度 D.耐冲击性能
Z 3 90 。求 i13 。
八、分析设计题（20 分） 现需要设计一个工作台，工作台平面尺寸 120 60 10 ，需要工作台用 1s 从 A 水 平运动到距离 240mm 的 B 处，在 B 处间歇 2s 后以同样的速度返回 A 处，回到 A 处后停留 2s 后再运动到 B 处，如此反复。 （忽略工作台产生的惯性力）
3、在链传动中，链条线速度较大，功率较小的场合应选用（）
A.大节现自锁现象（） A. B. C.摩擦力过大 D.功率小于零
二、是非题（每小题 2 分，共 30 分） （对的回答“是”或“T”,错的回答“非” 或“F” ） （剩下的历年真题出现过，记不清了） 1、锯齿形齿的牙嵌离合器能传递双向转矩 2、差动轮系的自由度为 1 或 2 3、滑动轴承轴瓦上的油沟要开在油膜承载区内 4、润滑油牌号越大说明润滑油越稠
六、凸轮结构题（15 分） 凸轮机构如图所示，图示位置为机构初始位置，凸轮做顺时针转动。 1、做出接触点为 A 点时，凸轮转过的角度 1 和从动件摆角 2 ； 2、从图示位置转动 270 时，标出此时的接触点 B 及此处压力角 。
七、轮系分析题（15 分） 轮系如图所示， 一平行四杆结构与齿轮 2 固定， 齿轮 2 与齿轮 3 内啮合， Z 2 18 ，
1、写出六种可以实现往复直线运动的运动机构，并画出结构简图。 2、列表分析比较上述机构的优缺点。 3、选一种合理的机构设计题中所需实现的运动，并说明理由。
浙江大学2015年专业课844真题
浙江大学2015年专业课844真题
一、
1、判断所给系统的线性、时不变性、记忆性、因果性和稳定性。
2、一个LTI系统，已知输入x(t+1)时，输出y(t)。
给出了x(t+1)和y(t)的图像，求h(t)，
用图像表示h(t)
3、给出y[n],求其Z变换（用Z域微分性质）
二、拉氏变换1求H（s）、零极图2求h(t) 3求输入为sgn(-t)+3u(t)时的零状态响应和零输入响应4画出模拟框图
三、Z变换（和拉式变换类似的问题）
四、Z变换综合，给出X（z)的若干性质，求出X（z)(教材上很多这种类型的题）
五、时域抽样定理考察，x[n]与x(nt)的关系，把教材第五章第二节看懂，很容易
以上是信号部分，貌似比以前的还要简单
六、给出了一个较复杂的逻辑等式
1 证明等式2用卡诺图化简左边3用MUX实现等式右边4写出等式的对偶形式
七、用JK触发器设计1011序列检测电路
八、有限状态机，要求写出状态转换表和状态方程，该状态米利型还是穆尔性
九、555定时器、异步时序电路和ＥＰＲＯＭ的组合电路，求ＣＰ频率，求Q2Q1Q0状态转换，求EPROM中存放的数据。
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病理学部分
一、名词解释（3*8）：表观遗传学，细胞信号传导，DNA甲基化，凋亡，基因芯片，转录因子，异型性，癌前病变
二、简答题（六选三，3*12）：
1.简述病毒与肿瘤的关系。
2.请简述肿瘤的分子分型。
3.目前结直肠癌发生的分子机制有几种，请你谈谈你的评价。
4.消化道常见的溃疡性病变有哪些（至少4种）及其病理学特点及鉴别要点。
5.肿瘤上皮间质转化（EMT）的概念，它与肿瘤存在哪些联系，谈谈你所了解的机制。
6.免疫组织化学技术的概念及其应用范围。
病理生理学部分（四选二，2*20）
1.抑癌基因失活的机制有哪些？请举例说明其在肿瘤发生发展中的作用。
2.缺氧时组织细胞的病理生理学变化。
3.心衰的概念及其发病机制。
4.肝性脑病的概念及其发病机制。
病理的大题，有一题确实回忆不起来了，感谢janeab1战友的提醒。
其他的，排列顺序和题目文字表述稍微有点出入，但不影响答题。