考试试题纸B卷
西安工业大学线性代数第二学期试题(B卷)--11月4日
22
212
1213352626x x x x x x x ，则此二次型的秩为命题教师：1.出题用小四号、宋体输入打印， 纸张大小为8K.
考 生：1.不得用红色笔，铅笔答题，不得在试题纸外的其他纸张上答题，否则试卷无效。
2.参加同卷考试的学生必须在“备注”栏中填写“同卷”字样。
3.考试作弊者，给予留校察看处分；叫他人代考或代他人考试者，双方均给予开除学籍处理。
并取消授予学士学位资
命题教师：1.出题用小四号、宋体输入打印， 纸张大小为8K.
考 生：1.不得用红色笔，铅笔答题，不得在试题纸外的其他纸张上答题，否则试卷无效。
2.参加同卷考试的学生必须在“备注”栏中填写“同卷”字样。
3.考试作弊者，给予留校察看处分；叫他人代考或代他人考试者，双方均给予开除学籍处理。
并取消授予学士学位资
命题教师：1.出题用小四号、宋体输入打印， 纸张大小为8K.
考 生：1.不得用红色笔，铅笔答题，不得在试题纸外的其他纸张上答题，否则试卷无效。
2.参加同卷考试的学生必须在“备注”栏中填写“同卷”字样。
3.考试作弊者，给予留校察看处分；叫他人代考或代他人考试者，双方均给予开除学籍处理。
并取消授予学士学位资。
建筑工程概预算B试卷
西安工业大学试题纸学年学期课程名称《建筑工程概预算》 B卷命题教师审批考试形式考试类型使用班级考试时间20 年月日考试地点学生班级姓名学号备注题号一二三四五六七八九十总分分数一.判断题(正确的在题后括号内打“√”，错的打“×”，每题1分，共10分。
)1. 直接工程费由人工费、材料费、施工机械使用费三部分组成。
( )2. 工人工作时为恢复体力稍作休息的时间为非定额时间。
( )3. 供求因果增加费属于施工附加费。
( )4. 钻孔灌注桩钢筋笼工程量按施工净用量计算，并考虑钢筋的损耗率。
( )5. 现浇砼平板是指不带梁直接用柱支承的板。
( )6. 甲类工程是固定资产方向调节税税率为0%的投资项。
( )7. 报价最低的标底其评定价格也最低。
( )8. 天棚面层在同一标高或不在同一标高，均为一级天棚。
（ )9. 大红、天蓝,、白色、浅湖等颜色在套用油漆定额时，套浅色定额。
( )10. 铝合金门窗工程量按框外围面积计算，无框门按扇外围面积计算。
( )二、单项选择题（每题4个选项中只有一个正确答案，每小题1分，共40题，共计40分）1．按我国现行《建筑安装工程费用项目组成》(建标[2003]206号文)的规定，建筑安装工程费用的组成为( )。
A.直接费、间接费、计划利润、税金B．直接工程费、间接费、利润、税金C.直接费、规费、间接费、税金D.直接费、间接费、利润、税金2．在下列费用中，属于建筑安装工程间接费的是( )。
A.施工单位搭设的临时设施费 B．危险作业意外伤害保险费C．劳动保障费 D.已完工程和设备保护费3.在下列费用中，不属于直接费的是( )。
A.施工单位搭设的临时设施费 B．夜间施工费C.技术开发费 D．-次搬运费4.工程量清单为投标者提供公开、公平、公正的竞争环境，由( )统一提供。
A.工程标底审查机构B.招标人C.工程咨询公司D.招投标管理部门5．建设工程项目总投资由建设投资和( )组成。
6月17日英语四级考试试题(B卷)及参考答案
6月17日英语四级考试试题(B卷)及参考答案6月17日英语四级考试试题(B卷)及参考答案6月17日英语四级考试试题(B卷)及参考答案2006年6月大学英语四级考试college english testband four--(4ssh 1)试卷一密封条由考生亲自启封注意事项一、将自己的校名、姓名、学校代号、准考证号写在答题纸和试卷二上。
将本试卷代号划在答题纸上。
二、试卷一、答题纸和试卷二均不得带出考场。
考试结束，监考人员收卷后考生才可离开。
三、仔细读懂题目的说明。
四、在90分钟内做完试卷一上的part i至part iii和试卷二上的part iv。
90分钟后，监考人员收取答题纸和试卷一，然后考生再做试卷二上的作文题。
作文题答题时间为30分钟。
全部考试时间为120分钟，不得拖延时间。
五、多项选择题的答案一定要划在答题纸上，凡是写在试卷上的答案一律无效。
试卷二上的题目答案直接写在试卷二上。
六、多项选择题每题只能选一个答案；如多选，则该题无分。
选定答案后，用hb浓度以上的铅笔在相应字母的中部划一条横线。
正确的方法是：[a) [b ] [c] [d]。
使用其它符号答题者不给分。
划线要有一定粗度，浓度要盖过字母底色。
七、如果要改动答案，必须先用橡皮擦净原来选定的答案，然后再按上面的规定重新答题。
八、在考试过程中要注意对自己的答案保密，若被他人抄袭，一经发现，后果自负。
全国大学英语四、六级考试委员会partⅰlistening comprehension (20 minutes)section adirections: in this section, you will hear 10 short conversations. at the end of each conversation, a question will be asked about what war said. both the conversation and the question will be spoken only once: after each question there will be a pause. during the pause, you maxi read the four choices marked a), b), c) and d), and decide which is, the best answer. then mark the corresponding letter on the answer sheet with a single line through the center.example: you will hear:you will read:a) at the office. b) in the waiting room. c) at the airport. d) in a restaurantfrom the conversation we know that the two were talking about some work they had to finish in the evening. this conversation is most likely to have taken place at the office. therefore, a) "at the office" is the best answer. you should choose [a] on the answer sheet and mark it with a single line through the centre.sample answer [a] [b] [c] id]1. a) they went a long way to attend the party.b) they didn't think much of the food and drinks.c) they knew none of the other guests at the party.d) they enjoyed the party better than the other guests.2. a) to the bookstore. c) to the market.b) to the dentist's. d) to the post office.3. a) dr. andrews has been promoted for his thoroughness.b) she disagrees with dr. andrews on many occasions.c) dr. andrews used to keep his patients waiting.d) she dislikes dr. andrews as much as the new physician.4. a) tom is usually talkative. c) tom has dozens of things to attend to.b) tom has a very bad temper. d) tom is disliked by his colleagues.5. a) to pickup the woman from the library.b) to make a copy of the schedule for his friend.c) to find out more about the topic for the seminar.d) to get the seminar schedule for the woman.6. a) the woman has to get the textbooks in other ways.b) the woman has sold her used textbooks to the bookstore.c) the man is going to buy his textbooks from a bookstore.d) the man doesn't want to sell his textbooks to the woman.7. a) attend a conference. c) meet his lawyer.b) give a speech. d) make a business trip.8 a) jessie always says what she thinks.b) jessie seems to have a lot on her mind.c) jessie is wrong to find fault with her boss.d) jessie should know the marketing director better. t9. a) heien is talkative. c) helen is sociable.b) helen is active. d) helen is quiet.10. a) jimmy will regret marrying a frenchwoman. b) jimmy is not serious in making decisions.c) jimmy is rich enough to buy a big house. d) jimmy's words are often not reliable.section bdirections: in this section, you will hear 3 short passages. at the end of each passage, you will hear some questions. both the passage and the questions will be spoken only once. after you hear a question, you must choose the best answer from the four choices marked a), b), c) and d). then mark the corresponding letter on the answer sheet with a single line through the centre.passage onequestions 11 to 13 are based on the passage you have just heard.11. a) it can be used by farmers to protect large buildings.b) it was brought to the northern usa by asian farmers.c) it has done more harm than good in the southern usa.d) it was introduced into the usa to kill harmful weeds.12. a) people will have to rely on kudzu for a living.b) they will soon be overgrown with kudzu.c) they will become too hard to plough.d) people will find it hard to protect the soil.13. a) the farmers there have brought it under control.b) the factories there have found a good use for it.c) the climate there is unfavorable to its growth.d) the soil there is not so suitable for the plant.passage twoquestions 14 to 17 are based on the passage you have just heard.14. a) a business corporation. c) a society of legal professionals.b) the universe as a whole. d) an association of teachers and scholars.15. a) its largest expansion took place during that period.b) its role in society went through a dramatic change.c) small universities combined to form bigger ones.d) provincial colleges were taken over by larger universities.16. a) private donations. c) grants from corporations.b) government funding. d) fees paid by students.passage threequestions 18 to 20 are based on the passage you havejust heard.17. a) he was wounded in the spanish civil war.b) he was interested in the study of wild animals.c) he started the organization heifer international.d) he sold his cows to many countries in the world.18. a) to help starving families to become self-supporting.b) to make plans for the development of poor communities.c) to teach people how to use new skills to raise animals.d) to distribute food to the poor around the world.19. a) they should help other families the way they have been helped.b) they should offer all baby animals to their poor neighbors.c) they should submit a report of their needs and goals.d) they should provide food for the local communities.20. a) it has improved animal breeding skills all over the world.b) it has helped relieve hunger in some developing countries.c) it has promoted international exchange of farmingtechnology.d) it has bridged the gap between the rich and the poor in america.partⅱreading comprehension (35 minutes) 北京导航李勇全、郑景婷、王轶群提供directions: there are 4 passages in this part, each passage is followed by some questions at unfinished statements. for each of them there are four choices marked a) , b) , c) and d). you should decide on the best choice and mark the corresponding letter on the answer sheet with a single line through the center.questions 21 to 25 are based on the following passage:interest in pursuing international careers has soared in recent years. enhanced by chronic (长久的) personnel shortages that are causing companies to search beyond their home borders for talent.professionals seek career experience outside of their home countries for a variety of reasons. they may feel the need to recharge their batteries with a new challenge. they may want a position with more responsibility that encourages creativity and initiative. or they may wish to expose their children to another culture, and the opportunity to learn asecond language.when applying for a job, one usually has to submit a resume or curriculum vitae (cv). the two terms generally mean the same thing: a one- or two-page document describing one's educational qualifications and professional experience. however, guidelines for preparing a r6sum6 are constantly changing. the best advice is to find out what is appropriate regarding the corporate (公司) culture, the country culture, and the culture of the person making the hiring decision. the challenge will be to embrace two or more cultures in one document. the following list is a good place to start.●"educational requirements differ from country to country. in almost every case of 'cross- border' job hunting, just stating the title of your degree will not bean adequate description. provide the reader with details about your studies and any related experience. " daohangtigong●pay attention to the resume format you use-chronological or reverse-chronological order. chronological order means listing your 'oldest' work experience first. reverse-chronological order means listing your current or most recent experience first. most countries have preferences about which format is most acceptable. ifyou find no specific guidelines. the general preference is for the reverse-chronological format. "●if you are submitting your resume in english, find out if the recipient （收件人) uses british english or american english because there are variations between the two versions. for example, university education is often referred to as 'tertiary education' in the united kingdom, but this term is almost never used in the united states. a reader who is unfamiliar with these variations may assume that your resume contains errors.21. companies are hiring more foreign employees becausea) they find foreign employees are usually more talentedb) they need original ideas from employees hired overseasc) they want to expand their business beyond home bordersd) they have difficulty finding qualified personnel at home22. the author believes that an individual who applies to work overseasa) is usually creative and full of initiativeb) aims to improve his foreign language skillsc) is dissatisfied with his own life at homed) seeks either his own or his children's development23. when it comes to resume writing, it is best toa) take cultural factors into considerationb) learn about the company's hiring processc) follow appropriate guidelines for job huntingd) know the employer's personal likes and dislikes24. when writing about qualifications, applicants are advised toa) stress their academic potential to impress the decision makerb) give the title of the university degree they have earned at homec) provide a detailed description of their study and work experiencesd) highlight their keen interest in pursuing a 'cross-border' career25. according to the author's last piece of advice, the applicants should be aware ofa) the different educational systems in the us and the ukb) the differences between the varieties of englishc) the recipient's preference with regard to the formatd) the distinctive features of american and british culturesquestions 26 to 30 are based on the following passage:北京导航李勇全、郑景婷、王轶群提供educating girls quite possibly yields a higher rate of return than any other investment available in the developing world. women's education may be unusual territory for economists, but enhancing women's contribution to development is actually as much an economic as a social issue. and economics, with its emphasis on incentives (激励), provides guideposts that point to an explanation for why so many girls are deprived of an education.parents in low-income countries fail to invest in their daughters because they do not expect them to make an economic contribution to the family: girls grow up only to marry into somebody else's family and bear children. girls are thus seen as less valuable than boys and art kept at home to do housework while their brothers are sent to school - the prophecy （预言) becomes self- fulfilling, trapping women in a vicious circle (恶性循环) of neglect.an educated mother, on the other hand, has greater earning abilities outside the home and faces an entirely different set of choices. she is likely to have fewer but healthierchildren and can insist on the development of all her children, ensuring that her daughters are given a fair chance. the education of her daughters then makes it much more likely that the next generation of girls, as well as of boys, will be educated and healthy. the vicious circle is thus transformed into a virtuous circle.few will dispute that educating women has great social benefits. but it has enormous economic advantages as well. most obviously, there is the direct effect of education on the wages of female workers. wages rise by 10 to 20 per cent for each additional year of schooling. such big returns are impressive by the standard of other available investments, but they are just the beginning. educating women also has a significant impact on health practices, including family planning.26. the author argues that educating girls in developing countries isa) troublesome c) rewardingb) labor-saving d) expensive27. by saying "... the prophecy becomes self-fulfilling ..." (lines 45. para. 2). the author means thata) girls will turn out to be less valuable than boysb) girls will be capable of realizing their own dreamsc) girls will eventually find their goals in life beyond reachd) girls will be increasingly discontented with their life at home28. the author believes that a vicious circle can turn into a virtuous circle whena) women care more about educationb) girls can gain equal access to educationc) a family has fewer but healthier childrend) parents can afford their daughters' education29. what does the author say about women's education?a) it deserves greater attention than other social issues.b) it is now given top priority in many developing countries.c) it will yield greater returns than other known investments.d) it has aroused the interest of a growing number of economists.30. 7be passage mainly discussesa) unequal treatment of boys and girls in developing countriesb) the potential earning power of well-educated womenc) the major contributions of educated women to societyd) the economic and social benefits of educating womenpassage three北京导航李勇全、郑景婷、王轶群提供questions 31 to 35 are based on the following passage:speeding off in a stolen car, the thief thinks he has got a great catch. but he is in for an unwelcome surprise. the car is fitted with a remote immobiliser (锁止器), and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.the idea goes like this. a control box fitted to the car contains a mini-cellphone, a micro- processor and memory, and a gps (全球定位系统) satellite positioning receiver. ff the car is stolen, a coded cellphone signal will tell the control centre to block the vehicle's engine management system and prevent the engine being restarted. daoahngtigongin the uk, a set of technical fixes is already making life harder for car thieves. 'the pattern of vehicle crime has changed,' says martyn randall, a security expert. he says it would only take him a few minutes to teach a person how to steal a car, using a bare minimum of tools. but only if the car is more than 10 years old.modern cars are far tougher to steal, as their enginemanagement computer won't allow them to start unless they receive a unique id code beamed out by the ignition (点火) key. in the uk, technologies like this have helped achieve a 31% drop in vehicle-related crime since 1997.but determined criminals are still managing to find other ways to steal cars, often by getting bold of the owner's keys. and key theft is responsible for 40% of the thefts of vehicles fitted with a tracking system.if the car travels 100 metres without the driver confirming their id, the system will send a signal to an operations centre that it has been stolen. the hundred metres minimum avoids false alarms due to inaccuracies in the gps signal.staff at the centre will then contact the owner to confirm that the car really is missing, and keep police informed of the vehicle's movements via the car's gps unit.31. what's the function of the remote immobilizer fitted to a car?a) to help the police make a surprise attack on the car thief.b) to allow the car to lock automatically when stolen.c) to prevent the car thief from restarting it once it stops.d) to prevent car theft by sending a radio signal to the car owner.32. by saying 'the pattern of vehicle crime has changed' (lines 1-2. para. 3). martyn randall suggests thata) it takes a longer time for the car thief to do the stealingb) self-prepared tools are no longer enough for car theftc) the thief has to make use of computer technologyd) the thief has lost interest in stealing cars over 10 years old33. what is essential in making a modem car tougher to steal?a) a coded ignition key. c) a special cellphone signal.b) a unique id card. d) a gps satellite positioning receiver.34. why does the tracking system set a 100-metre minimum before sending an alarm to the operations centre?a) to leave time for the operations centre to give an alarm.b) to keep police informed of the car's movements.c) to give the driver time to contact the operations centre.d) to allow for possible errors in the gps system.35. what will the operations centre do first after receivingan alarm?a) start the tracking system. c) block the car engine.b) contact the car owner. d) locate the missing car.passage four北京导航李勇全、郑景婷、王轶群提供questions 36 to 40 are based on the following passage:psychiatrists 精神病专家) who work with older parents say that maturity can be an asset in child rearing - older parents are more thoughtful, use less physical discipline and spend more time with their children. but raising kids takes money and energy. many older parents find themselves balancing their limited financial resources, declining energy and failing health against the growing demands of an active child. dying and leaving young children is probably the older parents' biggest, and often unspoken, fear. having late-life children, says an economics professor. often means parents, particularly fathers, "end up retiring much later." for many, retirement becomes an unobtainable dream.henry metcalf. a 54-year-old journalist, knows it takes money to raise kids. but he's also worried that his energy will give out first. sure, he can still ride bikes with his athletic fifth grader, but he's learned that young at heart doesn't mean young. lately he's been taking afternoon naps (午睡) daohangto keep up his energy. "my body is aging," says metcalf. "you can't get away from that."often, older parents hear the ticking of another kind of biological clock. therapists who work with middle-aged and older parents say fears about aging are nothing to laugh at. "they worry they'll be mistaken for grandparents, or that they'll need help getting up out of those little chairs in nursery school," says joann galst, a new york psychologist. but at the core of those little fears there is often a much bigger one: "that they won't be alive long enough to support and protect their child," she says.many late-life parents, though, say their children came at just the right time. after marrying late and undergoing years of fertilily (受孕) treatment, marilyn nolen and her husband. randy, had twins. "we both wanted children," says marilyn, who was 55 when she gave birth. the twins have given the couple what they desired for years, "a sense of family." kids of older dads are often smarter, happier and more sociable because their fathers are more involved in their lives. 'the dads are older, more mature," says dr. silber, "and more ready to focus on parenting."36. why do psychiatrists regard maturity as an asset inchild rearing?a) older parents are often better prepared financially.b) older parents can take better care of their children.c) older parents are usually more experienced in bringing up their children.d) older parents can better balance their resources against children's demands.37. what does the author mean by saying "for many, retirement becomes an unobtainable dream" (lines 7-8, para.1)?a) they are reluctant to retire when they reach their retirement age.b) they can't obtain the retirement benefits they have dreamed of.c) they can't get full pension unless they work some extra years.d) they have to go on working beyond their retirement age.38. the author gives the example of henry metcalf to show thata) older parents should exercise more to keep up with their athletic childrenb) many people are young in spirit despite their advanced agec) older parents tend to be concerned about their aging bodiesd) taking afternoon naps is a good way to maintain energy39. what's the biggest fear of older parents according to new york psychologist joan galst?a) approaching of death. c) being laughed at by other people.b) slowing down of their pace of life. d) being mistaken for grandparents.40. what do we learn about marilyn and randy nolen?a) they thought they were an example of successful fertility treatment.b) not until they reached middle age did they think of having children.c) not until they had the twins did they feel they had formed a family.d) they believed that children born of older parents would be smarter.part iii vocabulary (20 minutes)directions: there are 30 incomplete sentences it: this part. for each sentence there are four choices marked a), b), c) and d). choose cite one answer that best completes the sentence. then mark the corresponding letter on the answer sheet with a single line through the center.4l. people's expectations about the future may have more influence on their sense of well-being than their state does.a) current c) modernb) initial d) primitive42. after working all day, he was so tired that he was in no to go to the party with us.a) taste c) senseb) mood d) emotion43. there is already clear to show that plants and animals are being affected by climate change.a) witness c) identityb) certification d) evidence44. many women still feel that they are being by a male culture, particularly in the professional services sector.a) held back c) held onb) held forth d) held out45. the findings paint a unique picture of the shoppinghabits of customers, plus their motivation anda) privileges c) possessionsb) possibilities d) preferences46. it's good to know that quite a few popular english expressions actually from the bible.a) acquire c) deriveb) obtain d) result47. tom, did it ever to you that you would be punished for cheating on exams?a) happen c) reflectb) occur d) strike48. in the us, 88 percent of smokers had started before they were 18, despite the fact that it is to sellcigarettes to anyone under that age.a) liable c) irrationalb) liberal d) illegal49. according to the key witnesses, a peculiarly big nose is the criminal's most memorable faciala) feature c) spotb) hint d) signature50. brarll's constitution the military use of nuclear energy.a) withdraws c) interruptsb) forbids d) objects51. some people argue that the death does not necessarily reduce the number of murders.a) plot c) penaltyb) practice d) pattern52. many personnel managers say it is getting harder and harder to honest applicants from the growing number of dishonest ones.a) distinguish c) dissolveb) disguise d) discount53. a study shows that students living in non-smoking dorms are less likely to the habit of smoking.a) make up c) draw upb) turn up d) pickup54. almost all job applicants are determined to leave a good on a potential employer.a) illusion c) impressionb) reputation d) reflection55. a special feature of education at mit is the opportunity for students and faculty to togetherin research activities.a) specialize c) consistb) participate d) involve56. although they lost their jobs, savings and unemployment benefits allow the couple totheir comfortable home.a) come in for c) look forward tob) catch up with d) hold on to57. although many experts agree that more children are overweight, there is debate over the best ways tothe problem.a) relate c) fileb) tackle d) attach58. an important factor in determining how well you perform in an examination is the of your mind.a) state c) situationb) case d) circumstance59. research shows that there is no relationship between how much a person earns and whether he feels good about life.a) successive c)significantb) subsequent d) sincere60. sadly, as spending on private gardens has , spending on public parks has generally declined. a) heightened c) flownb) lifted d) soared61. lung cancer, like some other cancers, often doesn't produce until it is too late and has spread beyond the chest to the brain, liver or bones.a) trails c) symptomsb) therapies d) symbols62. with the increasing unemployment rate, workers who are 50 to 60 years old are usually the first to bea) laid off c) laid outb) laid aside d) laid up63. the physical differences between men and women can be directly to our basic n as hunters and child-bearers.a) pursued c) switchedb) traced d) followed64. it is clear that the dog has a much greater of its brain devoted to smell than is the case with humans.a) composition c) percentb) compound d) proportion65. american college students are increasingly with credit card debt and the consequences can be rather serious.a) boosted c) dischargedb) burdened d) dominated66. numerous studies already link the first meal of the day to better classrooma) performance c) behaviorb) function d) display67. the most successful post-career athletes are those who can take the identity and fife skills the learned in sports and them to another area of life.a) utilize c) applyb) employ d) exert68. the technological advances made it possible for the middle classes to enjoy what had once been only to the very rich.a) manageable c) acceptableb) measurable d) affordable69. being out of work, lane can no longer friends to dinners and movies as she used to.a) urge c) appealb) treat d) compel70. by the superstars on television, the young athletes trained hard and played intensely.a) imitated c) insuredb) imposed d) inspiredpart iv cloze (15 minutes)directions: there are 20 blanks in the following passage. for each blank there are jour choices marked a). b). c) and d) on the right side of the paper. you should choose the one that best fits into the passage. then mark the corresponding letter on the answer sheet with a single line through the centre.the part of the environmental movement that draws my firm's attention is the design of cities. buildings and products. when we designed america's first so-called "green" office building in new york two decades 7l_, we felt very alone. but today, thousands of people come to green building conferences, and the 72 that buildings can be good for people and the environment will be increasingly influential in years to 73 .back in 1984 we discovered that most manufactured products for decoration weren't designed for 74 use. the "energy-efficient" sealed commercial buildings constructed after the 1970s energy crisis 75 indoor air quality problems caused by materials such as paint, wall covering and carpet. so far 20 years. we've been focusing on these materials 76 to the molecules, looking for ways to make them 77 for people andthe planet.home builders can now use materials-such as paints that release significantly _78_ amounts of organic compounds -that don't 79 the quality of the air, water, or soil. ultimately. 80_, our basic design strategy is focused not simply on being "less bad" but on creating 81 healthful materials that can be either safely returned to the soil _82_ reused by industry again and again. as a matter of _83, the world's largest carpet manufacturer has already _ 84_"_ a carpet that is fully and safely recyclable (可循环用的).look at it this way: no one __85 out to create a building that destroys the planet. but our current industrial systems are } 86 causing these conditions, whether we like it or not. so 87_ of simply trying to reduce the damage, we are _88_ a positive approach. we're giving people high-quality, healthful products and an opportunity to make choices that have a 89 effect on the world. it's not just the building industry, either. 90_ cities are taking these environmentally positive approaches to design, planning and building. portland, seattle and boston have said they want to be green cities. chicago wants to be the greenest city in the world.71. a) ago c) before b) off d) away。
计算机网络试题及答案
计算机网络考试试题纸B卷一、单选题（每小题1分，共20分）1．调制解调技术主要用于下列哪种数据通信中A、模拟信号传输模拟数据B、模拟信号传输数字数据C、数字信号传输数字数据D、数字信号传输模拟信号2．下列哪种交换方法传输延迟最小？A、报文分组交换B、报文交换C、电路交换D、各种方法都一样3．下列哪种交换方法使用了虚电路？A、报文分组交换B、报文交换C、电路交换D、各种方法都一样4．虚电路方法在传输数据前A、必须预先建立一条逻辑连接B、不需要对信息进行分组C、收发两站的发送接收设备必须同时可用D、必须建立起专用的通信线路5．在下列传输介质中，哪种介质的典型传输率最高？A、双绞线B、同轴电缆C、光纤D、无线介质6．RS232C逻辑0的电平为A、大于+3VB、小于-3VC、大于+15VD、小于-15V7．两端用户传输文件，应属于下列OSI的哪一层处理？A、表示层B、会话层C、传输层D、应用层8．决定使用哪条路径通过子网，属于下面OSI的哪一层处理？A、物理层B、数据链路层C、传输层D、网络层9．OSI模型中，对话控制是哪个层次的功能？A、网络层B、传输层C、会话层D、表示层10．管理计算机通信的规则称为：A、协议B、介质C、服务D、网络操作系统11．控制访问网络资源的软件称为A、操作系统B、工作站C、客户机D、外设12．Windows NT为管理用户帐号提供的使用程序叫做A、服务器管理器B、用户管理器C、域用户管理器D、帐号管理器13．以下哪个IP地址属于C类地址？A、 B、C、 D、14，域名与下面哪个一一对应A、物理地址B、IP地址C、网络D、以上均错15．路由器运行于OSI模型的哪个层次？A、数据链路层B、网络层C、传输层D、应用层16．IP协议提供哪种服务？A、无连接服务B、面向连接的服务C、虚电路服务D、以上都不是17．DNS必须具有一个A、动态IP地址B、静态IP地址C、动态计算机名D、固定的计算机名18．下面哪个网络技术最适合多媒体通信需要？A、 B、ISDN C、帧中继D、TAM19．报文分组交换方式使用于下列哪种负荷情况？A、间歇式轻负荷B、传输数据率需固定的负荷C、持续的实时要求高的负荷D、中等或大量随时要传送的负荷20．Internet又称为（internet：互联网----首字母小写）A、互联网B、外部网C、内部网D、都不是二、多选题（每小题2分，共10分）21．在下列说法中哪些是正确的？A、串行通信一般用于近距离传输，并行通信用于远距离传输B、串行通信的频带利用率比并行通信的高C、串行通信的传输速度比并行通信的快D、串行通信可通过通信缓冲区来进行数据流速匹配22．在下列说法中哪些是正确的？A、虚电路与电路交换中的电路没有实质不同B、在通信的两站间只能建立一条虚电路C、虚电路也有连接建立、数据传输、连接拆除三个阶段D、虚电路的各个结点不需要为每个分组做路径选择判断23．下列哪些说法是正确的？A、数据链路层处理设备到设备间的通信B、网络层处理高层进程间的通信C、传输层处理端节点间的通信D、以上均对24．万维网由以下哪些组成？A、服务器B、客户机C、网卡D、协议25．网络的配置主要是安装和配置了A、用户B、IP地址C、网卡D、协议三、写出下列英文缩写的中文含义的中文含义是________点对点______________________________中文含义是_______________综合业务数字网_________________________的中文含义是______________局域网_________________________中文含义是________________电子公告板__________________________30．Modem中文含义是_____________调制解调器_________________________四、名词解释（每小题5分，共15分）31．网络利用率网络利用率指：在网络上，线路有效利用的时间和总时间的百分比。
《互联网数据库》试卷(B卷)答案及评分标准专用纸
阳光学院考试答案及评分标准专用纸（B卷）2023年—— 2024年第一学期教师姓名：林敏军课程名称：互联网数据库考试方式：闭卷考核对象(年级专业)： 20级电子商务一.单择题（共30分，每小题2分）1.B2.C3.A4.B5.B6.C7.A8.A9.A 10.B11.A 12.C 13.B 14.B 15.C二.填空题（共10分，每空1分）1. 文件系统2. 数据库管理系统（DBMS）3. 介质故障4. 外键5. 数据项6. 数据库管理系统7. 无损连接性8. 数据的完整性约束9. 基本表（基本关系\基表）10. 视图表三.简答题（共30分，每小题3分）1.答：数据依赖是通过一个关系中属性间值的相等与否体现出来的数据间的相互关系（1分），是现实世界属性间相互联系的抽象（1分），是数据内在的性质，是语义的体现（1分）。
2.答：数据库的安全性是防止由于非法使用数据库造成数据泄露、更改或破坏（1分）。
安全性措施的防范对象是非法用户和非法操作（0.5分）。
数据库的完整性是指防止合法用户使用数据库时向数据库中加入不符合语义的数据（1分）。
完整性措施的防范对象是不合语义的数据（0.5分）。
3.第三代数据库系统应支持数据管理、对象管理和知识管理（1分）。
第三代数据库系统必须保持或继承第二代数据库系统的技术（1分）。
第三代数据库系统必须对其他系统开放（支持其他的语言、其他的协议）（1分）。
4.答：实体完整性约束（1分）；引用完整性约束（1分）；函数依赖约束（0.5分）；统计约束（0.5分）。
5.答：建立一个Connection对象（1分）；调用该对象的Open方法打开数据库（0.5分）；建立对象Recordset（0.5分）；将Recordset对象内容输出到浏览器（0.5分）；对象关闭结果集，断开与数据库的连接（0.5分）。
6.内模式：数据的物理结构和存储方式的描述，三级模式结构的最低层，对应着实际存储在外存储介质上的数据库。
初一历史考卷试题
2023—2024学年上学期教学质量检测（B卷）七年级历史试卷（总分：100分；考试时间：60分钟）友情提示：请把答案填涂到答题纸上！请不要错位、越界答题！！一、选择题：本题共28小题，每小题2分，共56分。
在每小题给出的四个选项中，只有一项是最符合题目要求的。
1．考古学者认为北京人已经学会使用火，还会长时间保存火种。
其依据是北京人遗址发现了A．头盖骨化石B．石锤和石砧C．灰烬和烧骨D．炭化的稻粒2．考古学家在浙江余姚发现一处古人类遗址，经碳－14测定距今约有七千年。
可以推断，此人类遗址是A．半坡遗址 B．河姆渡遗址C．陶寺遗址 D．大汶口遗址3．玉钺象征着良渚文明的军事权力，与玉琮、玉璧一起构成玉器体系的核心，彰显了特权阶级高贵的身份。
这表明此时我国部分地区A．文明发展已领先世界B．手工制作技术水平高C．社会阶级分化已产生D．出现灿烂的青铜文明4．中国古代神话传说“黄帝四面”（长了四张面孔）。
对此，孔子解释为，黄帝派四个重要人物治理四方、为民造福。
据此可知A．神话口耳相传B．传说反映历史真相C．神话不足为信D．传说可经现实解释5．“大道之行也，天下为公。
选贤与能，……是谓大同。
今大道既隐，天下为家，……是谓小康。
”这样的变化始于A．夏朝 B．商朝 C．西周 D．东周6．《史记》记载，商纣施用酷刑，残害人民，荒淫无道，聚众作乐，“以酒为池，悬肉为林，……作长夜之饮”。
据此可知，商朝灭亡的主要原因是A．经济衰退 B．统治暴虐 C．外族入侵 D．对外征战7．“通过逐级分封编织起由中央向四方扩散的控制网络……密切了同周边各个少数民族的关系，推动了边远地区的经济开发和文化发展。
”材料描述了分封制的A．背景 B．条件 C．内容 D．影响8．周礼严格规定了贵族饮宴列鼎的数量：王九鼎，诸侯七鼎，卿五鼎，士三鼎。
由此可知，西周A．社会等级森严 B．疆域空前庞大 C．青铜工艺高超 D．人民生活富裕9．图1是某同学的历史学习笔记，据此可知，他学习的相关著作是图1A．《道德经》B．《论语》C．《孟子》D．《韩非子》10．“（思想家们）在晚周时期大动乱的形势下，力图提出稳定社会和安抚人心的原则。
2022年陕西省中考生物真题(B卷)(解析版)
B．叶片的遮盖部分，二氧化碳仍可以通过气孔进入叶片内部，参与光合作用，B不符合题意。
C．叶片使用黑纸片遮盖，遮盖部分不透光，未遮盖部分有光照，会使遮盖部分叶片无光照，不能进行光合作用，无淀粉合成，C符合题意。
【详解】A．淀粉与碘液反应变成蓝色，可验证绿叶在光下制造了淀粉，A正确。
B．淀粉与碘液反应变成蓝色，探究馒头在口腔中的变化时，使用碘液是为了验证淀粉在口腔的消化，B错误。
C．观察玉米种子的结构时，使用碘液便于观察胚乳的结构，C错误。
D．观察人的口腔上皮细胞时，利用碘液对细胞进行染色，D错误。
故选A。
D．无机盐在人体内的含量不多，不提供能量，是构成人体的重要原料，如钙和磷是构成牙齿和骨骼的重要成分。无机盐还参与人体的各种代谢活动，是人体生长发育等生命活动正常进行的重要保证，D错误。
故选D。
11.人体的下列血管中，流动着静脉血的是（）
A.肺动脉B.肺静脉C.主动脉D.入球小动脉
【答案】A
【解析】
【分析】人体的血液循环途径如下图所示：
D．植物体内的水分是由导管运输的，整个植物体内导管是处处相通的，所以，遮盖部分和未遮盖部分的叶片均会有水，D不符合题意。
故选C。
10.我们从食物中获得的营养物质具有提供物质和能量，维持生命和健康的作用。下列营养物质的作用与举例不相符的是（）
A. 提供物质，如蛋白质B. 维持健康，如维生素
C. 维持生命，如水D. 提供能量，如无机盐
机密★启用前
试卷类型：B
2022年陕西省初中学业水平考试
生物学试卷
注意事项：
1.本试卷分为第一部分（选择题）和第二部分（非选择题）。全卷共8页，总分60分。考试时间60分钟。
《成本会计》期末考试B卷+答案
C．营业费用D.财务管理
10.品种法的特点包括( )。
A.成本核算对象是产品品种
B.品种法下一般定期计算产品成本
C.如果月末有在产品，要将生产成本在完工产品和在产品之间进行分配
D.成本计算期与产品的生产周期基本一致
得分
评卷人
三、判断题（每小题1分，共10分）
题号
1
2
3
4
5
6
7
C.对成本管理作用的大小D.成本计算是否及时
3.企业为生产产品发生的原料及主要材料的耗费，应计入（）。
A.基本生产成本B.辅助生产成本C.管理费用D.制造费用
4.下列属于产品成本核算首要程序的是（）
A.确定成本计算期B.生产费用的归集和分配
C.确定成本项目D.确定成本计算对象
5.辅助生产的工具模具制造，一般应采用（）。
A.40% B.60% C.70% D.80%
15.工时定额是指（）。
A.单位工时的产量标准
B.单位产量的工时标准
C.一定时期完成产品按定额计算所耗用的工时
D.一定时期完成产品所耗用的实际工时
16.按照《企业会计准则》，成本报表属于( )。
A.对外报表
B.对内报表
C.既是对内报表，又是对外报表
D.对内还是对外由企业决定
2.分类法的特点;
①按照产品的类别开设成本计算单
②在类内各种产品之间进行成本分配
③只能同基本方法结合使用
④分类法计算结果有一定假定性
五、实务题（第一题20分，第二题10分，共30分，步骤可酌情给分）
产品成本计算单
产品名称：甲产品20××年8月单位：元
项目
直接材料
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武汉理工大学考试试题纸（B卷）
课程名称数据库概论专业班级函授
题号一二三四五六七八九十总分题分10 12 12 15 16 20 15 100备注:学生不得在试题纸上答题(含填空题、选择题等客观题)
一．填空（10分）
1．概念模型的表示方法是__________________方法。
2．数据库系统的三级模式结构是__________________、__________________、__________________。
3．常见数据模型有网状模型、__________________、__________________和面向对象模型。
4．关系模型的三类完整性是__________________、__________________和用户定义的完整性。
5．基本的封锁类型有两种__________________、__________________。
二．选择题（12分）
( )1．数据库管理系统的简称是________。
A．DBS B．MIS C．DBMS
( )2．在SQL语言中，事务回滚所用的语句是________。
A．ROLLBACK B．COMMIT C．BEGIN TRANSACTION
( )3．数据库的________是指保护数据库以防止不合法的使用所造成的数据泄露更改或破坏。
A．安全性B．完整性C．保护性
( )4．客观存在并可相互区别的事物叫________。
A．码B．属性C．实体
( )5．事务故障是指事务在运行至正常终止点前被终止，事务故障的恢复是________。
A．系统自动完成B．DBA干预完成C．用户干预完成
( )6．在2NF的基础上消除________对码的传递函数依赖得3NF。
A．外码B．非主属性C．主属性
三．判断题（12分）
( )1．自然连接就是等值连接。
( )2．若并发执行的所有事务均遵守两段锁协议，则对这些事务的任何并发调度策略都是可串性化的。
( )3．概念模型用于信息世界的建模。
( )4．SQL语言可嵌入到一些高级语言（例如C ）程序中。
( )5．数据转储按转储方式可分为海量转储和动态转储。
( )6．唯一标识实体的属性集称为分量。
四．简答题（15分）
1．试述关系系统中参照完整性规则。
2．试述数据库、数据库管理系统、数据库系统的概念。
3．什么是基本表？什么是视图？两者的区别和联系是什么？
五．读SQL语句
设有三个关系分别为“学生表”、“课程表”、“学生选课表”，定义如下：
学生(学号,姓名,性别,年龄,所在系)
课程(课程号,课程名,先行课,学分)
选课(学号,课程号,成绩)
请写出下列命令的功能（每题4分，共16分）
1．SELECT 课程号，COUNT(学号)
FROM 选课
GROUP BY 课程号；
2．SELECT DISTINCT 学号
FROM 选课
WHERE 成绩<60
3．SELECT 学号，姓名
FROM 学生
WHERE 学号IN
(SELECT 学号
FROM 选课
WHERE 课程号IN
(SELECT 课程号
FROM 课程
WHERE 课程名= ‘信息系统’
)
);
4．SELECT 姓名
FROM 学生, 选课
WHERE 学生.学号=选课.学号AND 选课.课程号= '1';
六．写SQL语句（20分）
设有两个关系，码用下横线来表示出
顾客（顾客名，地址，余额）
订单（订单号，日期，顾客名）
要求用SQL语句完成以下操作
（1）查询余额在1000到2000元之间的顾客信息。
（2）查询武汉的顾客所下的所有定单。
(3) 插入一个新定单（”2004020”,2004/1/28,”张三”）
(4) 删除李司的全部定单
七．设计题(15分)
现有一局部应用，包括两个实体：“教研室”和“教师”，教研室包括教研室号、专业名称、
人数、所在系。
教师包括：编号、姓名、电话、职称。
这两个实体是一对多联系，即一个教研室由多个教师组成，一个教师只能在一个教研室工作，要求：画出E_R图，再将其转换为关系模型（包括关系名、属性名、码）。
答案：
五
1．求各个课程号及相应的选课人数。
2．查询考试成绩有不及格的学生的学号。
3．查询选修了课程名为“信息系统”的学生学号和姓名
4．查询所有选修了1号课程的学生姓名
六SQL语句
1．SELECT *
FROM顾客
WHERE 余额>=1000 AND 余额<=2000
2．SELECT订单.*
FROM 订单，顾客
WHERE 订单.顾客名=顾客.顾客名and地址= “武汉”
(3) INSERT
INTO订单（订单号，日期，顾客名）
V ALUES （”2004020”,2004/1/28,”张三”）
(4) DELETE
FROM订单
WHERE顾客名=“李司”
七．
1
m
教研室(教研室号，专业名称，人数，所在系) 教师（编号，姓名，电话，职称，教研室号）
构 成
教 研 室
教 师 专业名称 编 号 所在系
人 数 职 称
电 话 姓 名 教研室号。