广东工业大学 2012运筹学(管理学院) 2016年博士研究生考研真题
广东工业大学考研历年真题
广东工业大学考研历年真题【第一部分:单项填空】1. However, some actors _____ us with the deep feelings they can inspire in us for a character they are playing. [单选题] *A.astonishedB. astonishingC. astonish(正确答案)D. is astonished2. He was a _____ figure in the French film industry. [单选题] *A. dominantlyB. dominant(正确答案)C. dominanceD. dominants3. The morning after your arrival, you meet with the _____ physician for a private consultation. [单选题] *A. residentsB. resident(正确答案)C. residenceD. residences4._____a reply, he decided to write again. [单选题] *A. Not receivingB. ReceivingC. Not having received(正确答案)D. Having not received5.With lots of trees and flowers _____here and there, the city looks very beautiful. [单选题] *A. having plantedB. planted(正确答案)C. have been plantedD. to be planted6. I have bought two ball-pens, _______ writes well. [单选题] *A. none of themB. neither of themC. neither of which(正确答案)D. none of which7.Great changes have taken place since then in the factory _______we are working. [单选题] *A.where(正确答案)B.hatC.whichD.there8.The engineer ______my father works is about 50 years old. [单选题] *A. to whomB. on whomC. with whichD. with whom(正确答案)9.The reason ______he didn't come was ______he was ill. [单选题] *A. why; that(正确答案)B.that;whyC. for that;thatD.for which;what10. Is _______ some German friends visited last week? [单选题] *A. this schoolB. this the schoolC. this school oneD. this school where(正确答案)11. They are not very good, but we like_______. [单选题] *A. anyway to play basketball with themB. to play basketball with them anyway(正确答案)C. to play with them basketball anywayD. with them to play basketball anyway12. He sent me an e-mail, _______to get further information. [单选题] *A. hopedB hoping(正确答案)C. to hopeD. hope13._____in 1636, Harvard is one of the most famous universities in the United States. [单选题] *A. Being roundedB it was foundedC. Founded(正确答案)D. Founding14.The ____boy was last seen ______near the East Lake. [单选题] *A. Missing, playing(正确答案)B. missing, playC missed, playedD missed, to play15. Tony was very unhappy for _______ to the party. [单选题] *A. having not been invitedB. not having invitedC. having not invitedD not having been invited(正确答案)【第二部分:完形填空】A new study found that inner-city kids living in neighborhoods with more green spacegained about 13% less weight over a two-year period than kids living amid more concrete and fewer trees. Such __62__ tell a powerful story. The obesity epidemic began in the 1980s, and many people __63__ it to increased portion sizes and inactivity, but that can't be everything. Fast foods and TVs have been __64__ us for a long time. "Most experts agree that the changes were __65__ to something in the environment," says social epidemiologist Thomas Glass of The Johns Hopkins Bloomberg School of Public Health. That something could be a __66__ of the green.The new research, __67__ in the American Journal of Preventive Medicine, isn't the first to associate greenery with better health, but it does get us closer __68__ identifying what works and why. At its most straightforward, a green neighborhood __69__ means more places for kids to play – which is __70__ since time spent outdoors is one of the strongest correlates of children's activity levels. But green space is good for the mind__71__: research by environmental psychologists has shown that it has cognitive __72__ for children with attention-deficit disorder. In one study, just reading __73__ in a green setting improved kids' symptoms.__74__ to grassy areas has also been linked to __75__ stress and a lower body mass index (体重指数) among adults. And an __76__ of 3,000 Tokyo residents associated walkable green spaces with greater longevity (长寿) among senior citizens.Glass cautions that most studies don't __77__ prove a causal link between greenness and health, but they're nonetheless helping spur action. In September the U. S. House of Representatives __78__ the delightfully named No Child Left Inside Act to encourage public initiatives aimed at exposing kids to the outdoors.Finding green space is not __79__ easy, and you may have to work a bit to get your family a little grass and trees. If you live in a suburb or a city with good parks, take__80__ of what's there. Your children in particular will love it – and their bodies and minds will be __81__ to you.16. [单选题] *A) findings(正确答案)B) thesesC) hypothesesD) abstracts17. [单选题] *A) adaptB) attribute(正确答案)C) allocateD) alternate18. [单选题] *A) amongstB) alongC) besideD) with(正确答案)19. [单选题] *A) gluedB) related(正确答案)C) trackedD) appointed20. [单选题] *A) scrapingB) denyingC) depressingD) shrinking(正确答案)21. [单选题] *A) published(正确答案)B) simulatedC) illuminatedD) circulated22. [单选题] *A)atB)to(正确答案)C)forD)over23. [单选题] *A) fullyB) simply(正确答案)C) seriouslyD) uniquely24. [单选题] *A)vital(正确答案)B)casualC)fatalD)subtle25. [单选题] *A) stillB) alreadyC) too(正确答案)D) yet26. [单选题] *A) benefits(正确答案)B) profitsC) revenuesD) awards27. [单选题] *A) outwardB) apartC) asideD) outside(正确答案)28. [单选题] *A) ImmunityB) ReactionC) Exposure(正确答案)D) Addiction29. [单选题] *A)muchB)less(正确答案)C)moreD)little30. [单选题] *A) installmentB) expeditionC) analysis(正确答案)D) option31. [单选题] *A) curiouslyB) negativelyC) necessarily(正确答案)D) comfortably32. [单选题] *A) relievedB) delegatedC) approved(正确答案)D) performed33. [单选题] *A)merelyB)always(正确答案)C)mainlyD)almost34. [单选题] *A) advantage(正确答案)B) exceptionC) measureD) charge35. [单选题] *A) elevatedB) mercifulC) contentedD) grateful(正确答案)【第三部分:阅读理解】Passage 1Will there ever be another Einstein? This is the undercurrent of conversation at Einstein memorial meetings throughout the year. A new Einstein will emerge, scientists say. But it may take a long time. After all, more than 200 years separated Einstein from his nearest rival, Isaac Newton.Many physicists say the next Einstein hasn’t been born yet, or is a baby now. That’s because the quest for a unified theory that would account for all the forces of nature has pushed current mathematics to its limits. New math must be created before the problem can be solved.But researchers say there are many other factors working against another Einsteinemerging anytime soon.For one thing, physics is a much different field today. In Einstein’s day, there were only a few thousand physicists worldwide, and the theoreticians who could intellectually rival Einstein probably would fit into a streetcar with seats to spare.Education is different, too. One crucial aspect of Einstein’s training that is overlooked is the years of philosophy he read as a teenager—Kant, Schopenhauer and Spinoza, among others. It taught him how to think independently and abstractly about space and time, and it wasn’t long before he became a philosopher himself.“The independence created by philosophical insight is—in my opinion—the mark of distinction between a mere artisan (工匠) or specialist and a real seeker after truth,”Einstein wrote in 1944.And he was an accomplished musician. The interplay between music and math is well known. Einstein would furiously play his violin as a way to think through a knotty physics problem.Today, universities have produced millions of physicists. There aren’t many jobs in science for them, so they go to Wall Street and Silicon Valley to apply their analytical skills to more practical—and rewarding—efforts.“Maybe there is an Einstein out there today,” said Columbia University physicist Brian Greene, “but it would be a lot harder for him to be heard.”Especially considering what Einstein was proposing.“The actual fabric of space and time curving? My God, what an idea!” Greene said at a recent gathering at the Aspen Institute. “It takes a certain type of person who will bang his head against the wall because you believe you’ll find the solution.”Perhaps the best examples are the five scientific papers Einstein wrote in his “miracle year” of 1905. These “thought experiments” were pages of calculations signed and submitted to the prestigious journal Annalen der Physik by a virtual unknown. There were no footnotes or citations.What might happen to such a submission today?“We all get papers like those in the mail,” Greene said. “We put them in the junk file.”36. What do scientists seem to agree upon, judging from the first two paragraphs? [单选题] *[A] Einstein pushed mathematics almost to its limits.[B] It will take another Einstein to build a unified theory.[C] No physicist is likely to surpass Einstein in the next 200 years.[D] It will be some time before a new Einstein emerges.(正确答案)37. What was critical to Einstein’s success? [单选题] *[A] His talent as an accomplished musician.[B] His independent and abstract thinking.(正确答案)[C] His untiring effort to fulfill his potential.[D] His solid foundation in math theory.38. What does the author tell us about physicists today? [单选题] *[A] They tend to neglect training in analytical skills.[B] They are very good at solving practical problems.[C] They attach great importance to publishing academic papers.[D] They often go into fields yielding greater financial benefits.(正确答案)39. What does Brian Greene imply by saying “... it would be a lot harder for him to be heard” (Lines 1-2, Para. 9)? [单选题] *[A] People have to compete in order to get their papers published.[B] It is hard for a scientist to have his papers published today.[C] Papers like Einstein’s would unlikely get published today.[D] Nobody will read papers on apparently ridiculous theories.(正确答案)40. When he submitted his papers in 1905, Einstein _______. [单选题] *[A] forgot to make footnotes and citations[B] was little known in academic circles(正确答案)[C] was known as a young genius in math calculations[D] knew nothing about the format of academic papersPassage 2The relationship between formal education and economic growth in poorcountries is widely misunderstood by economists and politicians alike. Progress in both areas is undoubtedly necessary for the social, political, and intellectual development of these and all other societies; however, the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong. We are fortunate that it is, because building new educational systems there and putting enough people through them to improve economic performance would require two or three generations. The findings of a research institution have consistently shown that workers in all countries can be trained on the job to achieve radically higher productivity and, as a result, radically higher standards ofliving.Ironically, the first evidence for this idea appeared in the United States. Not long ago, with the country entering a recession and Japan at its pre-bubble peak, the U.S. workforce was derided as poorly educated and one of the primary causes of the poor U.S. economic performance. Japan was, and remains, the global leader in automotive-assembly productivity. Yet the research revealed that the U.S. factories of Honda, Nissan, and Toyota achieved about 95 percent of the productivity of their Japanese counterparts - a result of the training that U.S. workers received on the job.More recently, while examining housing construction, the researchers discoveredthat illiterate, non-English-speaking Mexican workers in Houston, Texas, consistently met best-practice labor productivity standards despite the complexity of the building industry's work.What is the real relationship between education and economic development? Wehave to suspect that continuing economic growth promotes the development of education even when governments don't force it. After all, that's how education got started. When our ancestors were hunters and gatherers 10, 000 years ago, they didn't have time to wonder much about anything besides finding food. Only when humanity began to get its food in a more productive way was there time for other things.As education improved, humanity's productivity potential increased as well.When the competitive environment pushed our ancestors to achieve that potential,they could in tum afford more education. This increasingly high level of education is probably a necessary, but not a sufficient, condition for the complex political systems required by advanced economic performance. Thus poor countries might not be ableto escape their poverty traps without political changes that may be possible only with broader formal education. A lack of formal education, however, doesn't constrain the ability of the developing world's workforce to substantially improve productivity forthe foreseeable future. On the contrary, constraints on improving productivity explain why education isn't developing more quickly there than it is.41. The author holds in Paragraph 1 that the importance of education in poor [单选题] * countries[A] is subject to groundless doubts.[B] has fallen victim of bias.[C] is conventionally downgraded.[D] has been overestimated.(正确答案)42. It is stated in Paragraph 1 that the construction of a new educational system [单选题] *[A] challenges economists and politicians.[B] takes efforts of generations.(正确答案)[C] demands priority from the government.[D] requires sufficient labor force.43. A major difference between the Japanese and U.S. workforces is that [单选题] *[A] the Japanese workforce is better disciplined.[B] the Japanese workforce is more productive.(正确答案)[C] the U.S. workforce has a better education.[D] the U.S. workforce is more organized.44. The author quotes the example of our ancestors to show that education emerged [单选题] *[A] when people had enough time.[B] prior to better ways of finding food.[C] when people no longer went hungry.(正确答案)[D] as a result of pressure on government.45. According to the last paragraph, development of education [单选题] *[A] results directly from competitive environments.[B] does not depend on economic performance.[C] follows improved productivity.(正确答案)[D] cannot afford political changes.Passage 3A symbiotic relationship is an interaction between two or more species in which one species lives in or on another species. There are three main types of symbiotic relationships: parasitism, commensalism, and mutualism. The first and the third can be key factors in the structure of a biological community; that is, all the populations oforganisms living together and potentially interacting in a particular area.Parasitism is a kind of predator-prey relationship in which one organism, the parasite, derives its food at the expense of its symbiotic associate, the host. Parasites are usually smaller than their hosts. An example of a parasite is a tapeworm that lives inside the intestines of a larger animal and absorbs nutrients from its host. Natural selection favors the parasites that are best able to find and feed on hosts. At the same time, defensive abilities of hosts are also selected for. As an example, plants make chemicals toxic to fungal and bacterial parasites, along with ones toxic to predatory animals (sometimes they are the same chemicals). In vertebrates, the immune system provides a multiple defense against internal parasites.At times, it is actually possible to watch the effects of natural selection in host-parasite relationships. For example, Australia during the 1940 s was overrun by hundreds of millions of European rabbits. The rabbits destroyed huge expanses of Australia and threatened the sheep and cattle industries. In 1950, myxoma virus, a parasite that affects rabbits, was deliberately introduced into Australia to control the rabbit population. Spread rapidly by mosquitoes, the virus devastated the rabbit population. The virus was less deadly to the offspring of surviving rabbits, however, and it caused less and less harm over the years. Apparently, genotypes (the genetic make-up of an organism) in the rabbit population were selected that were better able to resist the parasite. Meanwhile, the deadliest strains of the virus perished with their hosts as natural selection favored strains that could infect hosts but not kill them. Thus, natural selection stabilized this host-parasite relationship.In contrast to parasitism, in commensalism, one partner benefits without significantly affecting the other. Few cases of absolute commensalism probably exist, because it is unlikely that one of the partners will be completely unaffected. Commensal associations sometimes involve one species' obtaining food that is inadvertently exposed by another. For instance, several kinds of birds feed on insects flushed out of the grass by grazing cattle. It is difficult to imagine how this could affect the cattle, but the relationship may help or hinder them in some way not yet recognized.The third type of symbiosis, mutualism, benefits both partners in the relationship Legume plants and their nitrogen-fixing bacteria, and the interactions between flowering plantsand their pollinators, are examples of mutualistic association. In the first case, the plants provide the bacteria with carbohydrates and other organic compounds, and the bacteria have enzymes that act as catalysts that eventually add nitrogen to the soil, enriching it. In the second case, pollinators (insects, birds) obtain food from the flowering plant, and the plant has its pollen distributed and seeds dispersed much more efficiently than they would be if they were carried by the wind only. Another example of mutualism would be the bull's horn acacia tree, which grows in Central and South America. The tree provides a place to live for ants of the genus Pseudomyrmex. The ants live in large, hollow thorns and eat sugar secreted by the tree. The ants also eat yellow structures at the tip of leaflets: these are protein rich and seem to have no function for the tree except to attract ants. The ants benefit the host tree by attacking virtually anything that touches it. They sting other insects and large herbivores (animals that eat only plants) and even clip surrounding vegetation that grows near the tree. When the ants are removed, the trees usually die, probably because herbivores damage them so much that they are unable to compete with surrounding vegetation for light and growing space.The complex interplay of species in symbiotic relationships highlights an important point about communities: Their structure depends on a web of diverse connections among organisms.46.Which of the following statements about commensalism can be inferred from paragraph 1? [单选题] *[A]It excludes interactions between more than two species.[B]It makes it less likely for species within a community to survive.[C]Its significance to the organization of biological communities is small.(正确答案)[D]Its role in the structure of biological populations is a disruptive one.47.According to paragraph 2. which of the following is true of the action of natural selection on hosts and parasites? [单选题] *[A]Hosts benefit more from natural selection than parasites do.[B]Both aggression in predators and defensive capacities in hosts are favored for species survival.(正确答案)[C]The ability to make toxic chemicals enables a parasite to find and isolate its host.[D]Larger size equips a parasite to prey on smaller host organisms.48.Which of the following can be concluded from the discussion in paragraph 3 about theAustralian rabbit population? [单选题] *[A]Human intervention may alter the host, the parasite. and the relationship between them.(正确答案)[B]The risks of introducing outside organisms into a biological community are not worth the benefits.[C]Humans should not interfere in host-parasite relationships.[D]Organisms that survive a parasitic attack do so in spite of the natural selection process.49.According to paragraph 3, all of the following characterize the way natural selectionstabilized the Australian rabbit population EXCEPT: [单选题] *[A]The most toxic viruses died with their hosts.[B]The surviving rabbits were increasingly immune to the virus.[C]The decline of the mosquito population caused the spread of the virus to decline.(正确答案)[D]Rabbits with specific genetic make-ups were favored.50.According to paragraph 5. which of the following is NOT true of the relationshipbetween the bull's horn acacia tree and the Pseudomyrmex ants? [单选题] *[A]Ants defend the host trees against the predatory actions of insects and animals.[B]The acacia trees are a valuable source of nutrition for the ants.[C]The ants enable the acacia tree to produce its own chemical defenses.(正确答案)[D]The ants protect the acacia from having to compete with surrounding vegetation.。
2012考研管理类联考综合能力真题及答案解析
2012年硕士研究生入学考试 管理类专业硕士综合能力真题及参考答案说明：由于2012年试题为一题多卷，因此现场试卷中的选择题部分，不同考生有不同顺序。
请在核对答案时注意题目和选项的具体内容。
一、问题求解：第1~15小题，每小题3分，共45分。
下列每题给出的A 、B 、C 、D 、E 五个选项中，只有一项是符合试题要求的。
请在答题卡．．．上将所选项的字母涂黑。
1.某商品的定价为200元，受金融危机的影响，连续两次降价20%后的售价为 （A ）114元 （B ）120元 （C ）128元 （D ）144元 （E ）160元2.如图1 ∆ABC 是直角三角形，1S 2S 3S 为正方形，已知 a ，b ，c ，分别是1S 2S 3S 的边长，则（A ） a=b+c (B) a 2=b 2+c 2(C) a 2=2b 2+2c 2(D) a 3=b 3+c 3(E) a 3=2b 3+2c 3图1 3. 如图2，一个储物罐的下半部分是底面直径与高均是20m 的圆柱形、 上半部分（顶部）是半球形，已知底面与顶部的造价是400元/m 2，侧面的造价是300元/ m 2,该储物罐的造价是。
（≈π 3.14）（A ）56.52万元 （B ） 62.8万元 （C ）75.36万元 （D ）87.92万元（E ）100.48万元 图24. 在一次商品促销活动中，主持人出示一个9位数，让顾客猜测商品的价格，商品的价格是该9位数中从左到右相邻的3个数字组成的3位数，若主持人出示的是513535319，则顾客一次猜中价格的概率是（A ）71 （B ） 61 （C ）51 （D ） 72（E ）315. 某商店经营15种商品，每次在橱窗内陈列5种，若每两次陈列的商品不完全相同，则最多可陈列 （A ）3000次 （B ） 3003次 （C ）4000次 （D ） 4003次 （E ）4300次6. 甲、乙、丙三个地区的公务员参加一次测评，其人数和考分情况如下表：三个地区按平均分由高到低的排名顺序为（A ）乙、丙、甲 （B ）乙、甲、丙 （C ）甲、丙、乙 （D ）丙、甲、乙 （E ）丙、乙、甲7.经统计，某机场的一个安检口每天中午办理安检手续的乘客人数及相应的概率如下表：(A)0.2 (B)0.25 (C)0.4 (D)0.5 (E)0.758. 某人在保险柜中存放了M 元现金，第一天取出它的32，以后每天取出前一天所取的31，共取了7次，保险柜中剩余的现金为（A ）73M 元 （B ）63M元 （C ）632M 元 （D ）[1- (32)7]M 元（E ）[1-7⨯(32)7]M 元9.在直角坐标系中，若平面区域D 中所有点的坐标（y x ,）均满足：0≤≤x ，0≤≤y 6，3≤-x y ，22y x +9≥，则D 的面积是（A ）)41(49π+ （B ）)44(9π- （C ）)43(9π- （D ）)2(49π+（E ）)1(49π+10.某单位春季植树100颗，前2天安排乙组植树，其余任务由甲、乙两组用3天完成，已知甲组每天比乙组多植树4棵，则甲组每天植树（A ） 11棵 (B) 12棵 (C) 13棵 (D) 15棵 (E) 17棵11、在两队进行的羽毛球对抗赛中，每队派出３男２女共５名运动员进行５局单打比赛。
广东工业大学2012级研究生测试技术汇总题目
题目一、填空题§1.1章节1.MCS-51中的P0口和P2口除了可以进行数据的输入、输出外，通常还用来构建系统的和。
2.89C51单片机有四个8位并行I/O端口：3.ROM和RAM的主要区别在于断电后ROM内的信息而RAM中的信息。
4.89C51芯片内部有一个高增益反相放大器，用于构成。
反相放大器输入端为，输出端为。
5.89C51的数据据存储器（RAM）片内有个特殊功能寄存器（SFR），它们同128字节RAM统一编址，地址为。
6.64K的片外数据存储器地址空间，访问片外RAM指令用。
256字节的片内数据存储器地址空间，访问片内RAM指令用。
7.MCS-51单片机常用的三种复位方法是：、和8.当EA="0"时， ROM不起作用,CPU只能从 ROM/EPROM中取指令。
9.MCS-51单片机的存储方式可分为五类：、、、、。
10.MCS-51CPU的结构是由、和组成。
11.在乘、除指令中，用到了8位寄存器B。
乘法指令的两个操作数分别取自A和B，乘积存于B和A两个8位寄存器中。
除法指令中，A中存放，B中放，商存放于，余数存放于。
12.89C51的堆栈指针SP是一个双向计数器。
进栈时，SP内容自动增值，出栈时自动减值，存取信息必须按的规则进行。
§1.2章节13.I/O的扩展方法有通过扩展和通过扩展。
14.MCS51的三总线包括，，。
15.当外界输出数据为暂态数据，经P0口输入外部数据时，须在P0端加v ，以锁存快速变化的外部数据。
16.串行数据通过输入或输出，而TXD用于输出，作为外接部件的同步信号。
17.MCS-51采用串行口扩展并行I/O口时，串行口工作方式应选择。
18.通过在74LSl64的输出端加接输出，可以保证串行输入结束后再输出数据。
19.8255的外部引脚A1，A0是选择信号线。
20.8255共有两个控制字，一个是控制字，另一个是控制字。
21.8255利用C口的可以很方便的使C口8位中的任一位清0或置1。
广东工业大学826管理学2002--2010年考研真题／研究生入学考试试题
(考生注意：答卷封面需填写自己的准考证编号，答完后连同本试题一并交回！)
一、名词解释（5*4=20分）
1、组织变革
2、企业文化
3、战略管理
4、管理
5、管理沟通
一、单项选择题（20*1=20分）
1、空调制造公司购并电子元件生产企业，此战略类型是（）。
A、横向一体化
B、纵向一体化
A、必要性
B、目的性
C、科学性
D、艺术性
16、管理是一门艺术，这是强调管理的（），否则无所谓艺术。
A、多样性
B、科学性
C、实践性
D、复杂性
17、计划工作中的（）强调抓住关键问题。
A、许偌原理
B、限定因素原理
C、灵活性原理
D、改变轨迹原理
18、（）又被称为理性决策。
A、最优决策
B、满意决策
C、合理决策
责任的含义如何理解？责任就是每一位员工对自己所负使命的忠诚和信守；是对自己工作出色的完成；是忘我的坚守和人性的升华；责任还是企业对员工，对社会，对出资人的应尽义务。一个失去责任感的人或组织，首先失去的是社会对自己的基本认可其次会失去对自己的信任和尊重，甚至会失去自身的立命之本――信誉和尊严；而一个勇于承担责任的人或组织却是能够忠诚负责的对待工作，以强烈的责任感保证工作绩效，保证敬业爱岗，保证开拓创新，从而保证企业的竞争力。我们的企业精神是“责任炼油企业”。我们倡导的责任文化体系的核心在于强调“负责，高效，务实，进取”的价值观。其中，负责是我们严谨认真积极的态度，高效是我们快速发展的根本保障，务实是我们始终如一的工作作风，进取是我们不断前进的动力源泉……。
D、程序化决策
19、正在生产线上监督工人操作机器的工长实际的是（）。
广东工业大学考研专业课
2T3 2T2 tan cos 1 sin 3 dm2 m n z3
1
m n z3 tan cos 1 3 sin d m2 1 6 21 tan 20 cos 22.61986 sin 207.69 sin 1 (0.203825603) 11.76076 114539
法面 轴面
a a' b
b' Fn α Ft1 F' Fr1 Fa1 e P c c'
力的大小
2T1 Ft1 Ft 2 d m1
轴面
F' Ft1 tan 法面
Fr1 F' cos 1 Ft1 tan cos 1 Fa 2 Fa1 F' sin 1 Ft1 tan sin 1 Fr 2
Fn Ft1 Fa1 Fr1
力的大小:
2T1 Ft1 Fa 2 d1 2T2 Fa1 Ft 2 d2
Ft1
γ n1 Fr1 Fn αn αt
γ
Fa1
Fr1 Fr2 Ft2tg
Fa1 Ft 2 2T2 Fn cos cos n cos cos n d 2 cos cos n
Ft4Fa3Fa2Fa1轮1旋向轮2旋向
蜗杆主动，受圆周力与转动方向相反
轮2从动，受圆周力与转动方向相同 Ⅱ
3 Fa3 Fr3
1
Ⅰ
左旋
Fa1
Ft2 Fr2
Fa2
Ft3 Ft4
FLi=GD/2
Ⅲ
2
右旋
4
G
15
例
如图所示为蜗杆传动和圆锥齿轮传动的组合。已知输出轴上的 锥齿轮z4的转向n。（1）欲使中间轴上的轴向力能部分抵消， 试确定蜗杆传动的螺旋线方向和蜗杆的转向。（2）在图中标出 各轮轴向力的方向。
广东工业大学概率论与数理统计B试卷与答案-2016A
x1 , x2 , , xn 0 其它
( 11 分)
n
取对数 ln L n ln xi
i1
,对
求导，得
d ln L d
n
n
xi
i1
，令
d ln L d
0
得 的最
大似然估计为 ˆ 1 X
(15 分)
广东工业大学试卷用纸，共 4 页，第 4 页
）
（A）0
（B）0.7
（C）0.6
（D）0.5
5. 已知二维随机变量( X ,Y ) ~ N(1,1,2,2,0.5 ) ，则 Cov( 2X 1,3Y 2 ) (
)
（A）-6
（B）-12
（C）6
（D）8
二、填空题(本大题共 5 小题，每小题 4 分，共 20 分)
1.从 1,2,3,4,5 这 5 个数字中等可能有放回的连取 3 个数字，则这 3 个数字中 1 出现两次
f
(
x, y
)dxdy
7 72
五、（15 分）(1) ( X ,Y )的联合分布律：(10 分)
(2 分)
（5 分）
X Y1
1
1
(2)
6
1
2
6
1 2
1
2
1
6
2
1
1
6
2
1 2
Cov( X 1,Y 1) Cov( X ,Y ) E( X ,Y ) EXEY 1 3
六、（15 分）
f
(
x, y
)
x2
cxy, 0 0, 其他
x
2012年广东工业大学统计学真题C卷
计算要求：A：必须列明公式、算式和计算结果。
B：计算过程和结果，若有小数保留2位。
C：计算结果含义，必须作出解释说明。
1、某厂按计划规定，第一季度的单位成本比去年同期降低10%。实际执行结果，单位成本较去年同期降低8%，问该厂第一季度单位成本计划的完成程度如何？
2、某企业生产三种产品的产值和产量动态资料如下。
5、下列集中趋势指标中，哪些指标受极端值影响（）
A、众数B、中位数C、几何平均数D、算术平均数
6、公司2000年总产值为100万元，2005年为500万元，则总产值的( )
A、平均增长速度为100% B、平均增长速度为38%
C、平均增长量为400万元D、平均增长量为80万元
7、物价降低后，同样多货币多购商品15%，说明（）
（2）产值变动：∑p0q1－∑p0q0＝6827－1948＝4879万元（1分）
价格变动：∑p1q1－∑p0q1＝6827－4502.95＝2324.05万元（1分）
产量变动：∑p0q1－∑p0q0＝4502.95－1948＝2554.95万元（1分）
分析：
报告期产值比基期产值增长250.46％，绝对额增加4879万元。其中，由于价格提高51.61％，使产值增加2324.05万元，由于产量增长131.16％，使产值增加2554.95万元。综合结果有：
产品
实际产值（万元）
2006年比1996年产量增长（%）
1996年
2006年
甲
400
4260
74
乙
848
1135
10
丙
700
1432
40
要求：从相对数和绝对数两方面分析产值受产量和价格两因素的变动影响。
广东工业大学《826管理学》历年考研真题(含部分答案)专业课考试试题
一、名词解释（每小题6分，共30分） 1 业务流程再造过程
答：业务流程再造（BPR）是20世纪90年代，由美国麻省理工学院迈克 ·哈默教授和钱皮博士提出，是指对企业的业务流程进行根本性的再思 考和彻底性的再设计，从而使企业在成本、质量、服务和速度等方面获 得进一步的改善。流程再造的意义是通过对企业原有业务流程的重新塑 造，包括进行相应的资源结构调整和人力资源结构调整，提高企业整体 竞争力。企业将由以职能为中心的传统形态转变为以流程为中心的新型 流程导向型企业，实现企业经营方式和管理方式的根本转变。
2 试述波特－劳勒激励模型主要内容。
六、案例分析（共20分） 某公司一位管生产的副总，每次开生产例会的时候，女职工都会带着纸 巾或手帕，主要用来擦眼泪。因为在每次例会上，那个副总都指名道姓 地骂他的下属。他的下属们整天在一种高压和恐惧下工作，结果生产系 统问题越来越大，公司效益也越来越差。针对这种情况，请你分析： 1．产生这一现象的原因是什么？ 2．如何解决这些问题？
二、单项选择题（每小题2分，共20分）
1 管理不以人的意志为转移，也不因社会制度意识形态不同而有所改 变，是一种客观的存在的，这属于管理的（ ）。 A．社会属性 B．自然属性 C．科学属性 D．物理属性 【答案】B 【解析】管理的二重性是指管理的自然属性和社会属性。管理的自然属 性是指与一定的生产力相联系的，是一种不随个人意识和社会意识的变 化而变化的客观存在。而管理的社会属性是一种只有在一定生产关系和 社会制度中才能进行的社会活动，它的中心问题是“为谁管理”的问题， 它为统治阶级服务，体现着生产资料所有者指挥劳动、监督劳动的意 志。题中，管理是不以人的意志和社会制度意识形态的不同而改变的特 点体现的是其自然属性。
三、简答题（每小题10分，共40分） 1 简述管理的5个基本职能。