同济大学继续教育学院2012学年秋季学期期终考试

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同济大学课程考核试卷(A卷)

同济大学课程考核试卷(A卷)

同济大学课程考核试卷(A卷)2008—2009学年第二学期命题教师签名:审核教师签名:课号:102214课名:传感器与检测技术考试考查:考试此卷选为:期中考试( )、期终考试( ■ )、重考( )试卷年级专业学号姓名得分二、选择题(每题2分,共24分)1. 按敏感元件与被测对象之间的能量关系,传感器可分为(D )传感器。

A.温度型和速度型B.物性型和结构型C.机械型和电子型D.能量转换型和能量控制型2. 二阶传感器系统中,属于其动态特性的表征参数是(C )。

A.线性度B.灵敏度C.超调量D.漂移3. 为了减小非线性误差,采用差动变隙式电感传感器,其灵敏度和单线圈式传感器相比,( D )。

A. 降低二倍B. 降低一倍C. 提高二倍D. 提高一倍4. 电感式传感器采用变压器式交流电桥作为测量电路时,如想分辨出衔铁位移的方向,则应在电路中加(C )电路。

A.加法器B.检波C.相敏检波D.鉴频5. 若两个应变量变化完全相同的应变片接入测量电桥的相对桥臂,则电桥的输出将(A )。

A.增大B.减小C.不变D.可能增大,也可能减小6. 压电传感器的等效电路,(D )。

A.可以等效为电压源,不可等效为电荷源B.可以等效为电压源,不可等效为电荷源C.既不可等效为电压源,也不可等效为电荷源D.既可等效为电压源,也可等效为电荷源7. 电涡流在金属导体中的形成范围为(D )A.传感器线圈外径附近B.传感器线圈内径附近C.表面D.表面且传感器线圈外径附近8. 光电耦合器件由发光元件和光电接收元件组成,(C )。

A. 可实现电路隔离,不可进行电平转换B. 不可实现电路隔离,可进行电平转换C. 可实现电路隔离,可进行电平转换D. 不可实现电路隔离,不可进行电平转换9. 压电陶瓷与天然石英的压电性能比较,通常(A )。

A.压电常数大,居里点低B.压电常数小,居里点高C.压电常数大,居里点高D.压电常数和居里点都差不多10. 应变式传感器用电桥做转换电路,理论上电桥输出带有非线性误差的是(A )A.单臂电桥B.半桥C.全桥D.半桥和全桥11. 对热电耦传感器,形成热电势的必要条件是:( A )A.两种导体材料不同;节点所处的温度不同B.两种导体材料相同;节点所处的温度不同;C.两种导体材料不同;节点所处的温度相同D.两种导体材料相同;节点所处的温度相同12. 在差动变压器实验中,当衔铁过零位时,输出电压( D )。

同济大学继续教育学院2012学年秋季学期期终考试-推荐下载

同济大学继续教育学院2012学年秋季学期期终考试-推荐下载

同济大学继续教育学院2012学年秋季学期期终考试专升本大学英语(二)课程考试题(复习卷)学号应考班级级专业考试形式卷姓名题号总分得分Part I. Vocabulary & Structure (30%)Directions: Choose the ONE answer that best completes the sentence.1.As the semester is drawing to an end, the student union is calling on all thestudents to ____ the temptation to cheat on exams.A. refuseB. rejectC. resistD. resolve2.You don’t agree with me on this matter, I know, but ____ you’ll see I am inthe right.A. at timesB. in timeC. at one timeD. all the time3.As some of the rules concerning foreign trade ran contrary to the principlesof the WTO, the government decided to ____ them as soon as possible.A. abolishB. accomplishC. distinguishD. establish4.It is impossible for me to sing a song these days, for my voice is ____.A. going ofB. going toC. going offD. going away5.The old man regained consciousness and found himself lying in a roomwhich had nothing but ____ walls.A. blankB. emptyC. vacantD. bare6.The typical symptom of the epidemic SARS is ____ high fever and acutecough.A. persistentB. resistantC. subsequentD. perseverant7.The Christmas dinner includes poultry for the main course, salad, bread,and vegetables, and ____ a variety of desserts, for example, pies, puddingsand ice-cream.A. involvesB. featuresC. characterizesD. protrudes8.____ the events of last week, I think, we could have handled things moreefficiently.A. Falling back onB. Looking back onC. Getting back onD. Going back on9. A suicide bomb exploded in a Jewish ____, killing dozens of people.A. siteB. plantationC. terminalD.settlement10.In the last few years, the Internet and the World Wide Web have become____ words; almost everyone has heard of them.A. familyB. homeC. houseD. household11.It can said without exaggeration that no part of the United States is noteasily accessible by car, by train, or by air, and ____ by all the three of them.A. more often thanB. more often than notC. no more often thanD. less often than12.While freshmen are considered part of the academic elite(精英), some ofthem appear to lack common sense ____ following traffic regulations.A. coming toB. when coming toC. when it comes toD. when they come to13.Dangerous animals such as bears and wolves can be ____ by lighting a firewhen you go camping in a virgin forest.A. kept in handB. kept at bayC. kept in touchD. kept in mind14.As she matured as an artist, she ____ realize that “all artists are a product oftheir culture”.A. came toB. kept toC. took toD. went to15.He always uses the same ____ of lies to cheat strangers.A. numberB. flockC. groupD. web16.Many European countries ____ all alliance(同盟) against Hitler’s militaryinvasion.A. passed forB. forgedC. compelledD. authorized17.Because of the mad cow disease, the European Union ____ a worldwideban on British beef and beef product exports.A. challengedB. chargedC. forgedD. imposed18.The ancient tribes there are supposed ____ from the mainland to the island.A. to moveB. to be movingC. to have movedD. to have been moving19.Bicycle riders want the city government to set aside special lanes(行车道)for bicycles on some of the main streets, but though they have got some supporters, ____ likes the idea.A. everyoneB. not everyoneC. no oneD. someone20.On Children’s Day, our nieces and nephews were taken to the departmentstore and then ____ to pick their favorite toys.A. set outB. let aloneC. brushed asideD. turned loose21. Our house is about a mile from the station and there are not many houses ______.A. in betweenB. among themC. far apartD. from each other22. The destruction of these treasures was a loss for mankind that no amount of money could _________.A. stand up toB. put up withC. come up withD. make up for23. Some fish have a greater ________ for acid water than others.A. toleranceB. resistanceC. dependenceD. persistence24. Many scientists have been _________ the goal of a practical and economical way to use sunlight to split water molecules.A. pursuingB. chasingC. reachingD. winning25. I have no formal clothes for the occasion. Perhaps I can get _________ in a dark suit?A. throughB. byC. atD. off26. The money I get from teaching the piano is a useful _________ to my ordinary income.A. implementB. complementC. supplementD. compliment27. The _________ consists of Mr. and Mrs. Smith, their son and two daughters.A. houseB. householdC. homeD. housing28. He never talks to me _________ to ask for something.A. besidesB. aside fromC. apart fromD. other than29. I _________ my grant by working in the evenings.A. complimentB. complementC. supplementD. implement30._________ my point I have done a comparative study.A. IllustratingB. To illustrateC. Having illustratedD. Being illustratedPart II. Reading Comprehension (30%)Passage One:When John and Victoria Falls arrived in New York City for one-year stay, they did not bring very many things with them. They had planned either to live in a furnished apartment or to buy used furniture. But they soon learned about a new system that more and more people are using. The renting of home furnishings (bed, tables, dishes, and so on) has become one of America’s fastest growing businesses.What kinds of people rent their home furnishings instead of buying them? People who are international business or government officials, foreign students, airline workers, young married couples --- people whose job or business may force them to move frequently from one city to another. They save a lot of trouble and the cost of moving their furniture each time. They simply rent new furniture when they reach their new homes. Young people with little money do not want to buy cheap furniture that they may soon dislike. They prefer to wait until they have enough money to buy furniture they really like. Meanwhile, they find they can rent better quality furniture than they could afford to buy.One family, who now have a large, beautiful home of their own, liked their rented furniture so much that they decided to keep renting it instead of buying new things. But usually people don’t like to tell others about it. The idea of renting home furnishings is still quite new, and they are not sure what their neighbors might think.1.Which of the following has become one of America’s fastest growingbusinesses?A. Selling home furnishings.B. Renting furnished apartments.C. Selling used furniture.D. Renting home furnishings.2.Why do some people prefer to rent furniture?A.Because the furniture they get in this way is new.B.Because it saves them a lot of money.C.Because it saves them much trouble and money.D.Because they can always get better quality furniture in this way.3.What can you infer from the passage?A.The idea of renting furniture is not acceptable.B.Renting furniture is not popular in the couple’s home town.C.Only those who don’t have enough money rent furniture.D.People usually grow to like the furniture they have rented.4.Which of the following can best serve as the title of the passage?A. rent or Buy?B. A New Way of Getting Home FurnishingsC. Furnished ApartmentsD. A New Idea5.Young people liked renting home furniture in that _______.A. They have less money.B. They don’t want to buy old furniture.C. The new furniture is of good quality.D. They don’t have much money and don’t want to buy the cheap furniture.Passage Two:For the most part, rapid economic development has been a boon. But there is a down side to development – health problems such as overweight are all becoming more prevalent, as more people take taxis to work instead of riding their bicycles, and other labor-saving devices become more popular.An increasing fast pace of life makes it difficult for people to spend time working out or playing sports. “I know exercise is good for your health,” a young lady said. “But after a busy work week, the only thing I want to do is watch some TV and go to sleep.” That attitude may explain the results of a recent nationwide study, which suggested 15 percent of urban adults I China are overweight, a large number of people over the age of 40 suffer from high blood pressure and cardiac ailments.Local researchers found that 31.2 percent of elderly respondents were getting enough exercise, but less than 9 percent of youngsters and the middle-aged got an adequate amount of physical activity.Elderly people understand the importance of protecting their health. The young people, however, are busy working and use this as an excuse to avoid exercise. In fact, physical exercise doesn’t require much time, money or a special gymnasium. People can make use of any time and any place at their convenience to take part in sports. Walking quickly, cycling, climbing the stairs and dancing are all helpful methods to enhance one’s health.The benefits of adding a little more activity to your lift are priceless. “There is no need to be an athlete, however,” a local doctor said. People should walk for 30 minutes a day and take part in other physical activity three to five times a week. He warns, however, that people in poor physical shape should start slowly, and build up over time.China has taken the need for more exercise to heart, with the government running several activities last Sunday, which was the designated World Health Day. Pamphlets and posters based on the theme“Move for Health” were distributed nationwide, encouraging people to develop a positive and healthy lifestyle.6.Rapid economic development has resulted in all the following except ____.A.an increasing number of taxi passengersB.the wide use of labor-saving devicesC.an increasingly fast pace of lifeD.people’s awareness of the importance of exercise7.Some people are getting overweight because ____.A.they are too busy to have any time for exerciseB.they are ignorant of the benefits of exerciseC.they are too weak to participate in physical activityD.they are short of money to pay for different exercises8.According to the passage, who need regular daily exercise most?A.People taking taxis to work.B.Urban adults with full-time jobs.C.Elderly people suffering from high blood pressure.D.Youngsters dreaming of becoming professional athletes.9.What is the main idea of the last paragraph but one?A.Many people are still unable to afford the cost of physical exercises.B.Nobody should take part in physical activity in order to be an athlete.C.Moderate physical exercise is usually enough for ordinary people.D.Old or sick people should only take part in physical exercises of theslowest type.10.By referring to rapid economic development as “a boon” at the beginning ofthe passage, the author means that ____.A.it has benefited the general public greatlyB.it has done harm to people’s health nationwideC.it is going faster than anyone could have imaginedD.it has helped to establish a positive and health lifestyle of the publicPassage Three:Every human being, no matter what he is doing, gives off body heat. The usual problem is how to dispose of it. But the designers of the Johnstown campus of the University of Pittsburgh set themselves the opposite problem – how to collect body heat. They have designed a collection system which utilizes not only body heat, but the heat given off by such objects as light bulbs and refrigerators as well. The system works so well that no conventional fuel is needed to make the campus’s six buildings comfortable.Some parts of most modern buildings – theaters and offices as well as classrooms – are more than amply heated by people and lights and sometimes must be air-conditioned even in winter. The technique of saving heat and redistributing it is called “heat recovery”. A few modern buildings recover heat, but the University’s system is the first to recover heat from some buildings andreuse it in others.Along the way, Pitt has learned a great deal about some of its heat producers. The harder a student studies, the more heat his body gives off. Male students emit more heat than female students, and the larger a student, the more heat he produces. It is tempting to conclude that the hottest prospect for the Johnstown campus would be a hard-working, overweight male genius.11.Until recently, body heat has caused problems because it_____.A. was difficult to collectB. came in variety of formsC. was difficult to get rid of itD. tended to be absorbed by physical objects12.Which of the following is true of the heating system of the Johnstowncampus?A. The heat is supplied by human bodiesB. The heat is supplied by both human bodies and otherheat-emitting objectsC. The heat is supplied by both human bodies and conventional fuelD. The heat is supplied by human bodies, other heat-emitting objects, and conventional fuel13.At the Johnstown campus, how many of the buildings are heated entirely bythe heat collection system?A. NoneB. TwoC. FourD. Six14.According to the passage, which of the following would produce theLEAST amount of heat?A. A fat female who studies hardB. A thin female who does not studyC. A fat male who does not studyD. A thin male who studies hard15.In the last paragraph, the “hottest prospect” means the____.A. most intelligent studentB. most desirable studentC. most diligent studentD. most learned studentPassage Four:The resources of the library can be helpful even when we are doing something very informal, such as trying to devise a better way to measure attitudes toward music or looking for a better way to teach mathematics. The library can be equally helpful when we are doing something very formal, such as writing a dissertation (学位论文) or preparing an article for publication in a professional journal. In either case, our goal should be to use the library as a useful tool to help us understand and solve our problem.The following sections of this chapter will describe specific resources available in many libraries. In some cases you may already be aware of a resource and may use it frequently and successfully. In other cases you may be completely unfamiliar with a resource. Your goal should be to become aware of what is available and to know how to use each of these resources to help you solve the problem they are designed to solve.When educators have a piece of information that they want to share with their colleagues, they often make this information available in professional journals or at professional meetings. It would often be useful to have access to such information, and this chapter will describe the special services that enable us to locate such information.16.The library resources can be helpful when we ______.A. want to find a better way to measure attitudes toward musicB. are preparing a paper for a professional journalC. are writing a dissertationD. All of the above17.Readers’ familiarity with different resources ______.A. is more or less the sameB. varies slightlyC. differs greatlyD. should not be different18.The author believes that ______.A. library resources should be used frequently and completelyB. library resources cannot be made good use of if they are not available tousC. one is supposed to be aware of the library resources that are usually notavailableD. one is supposed to have good knowledge and make good use of libraryresources19.When educators wish to share some information with their colleagues, theyoften ______.A. publish it in a professional journalB. organize professional meetingsC. get access to it in the libraryD. make use of some library services20.The chapter in question mainly ______.A. deals with the ways of dissertation writingB. presents information on publishing papers in professional journalsC. introduces some library servicesD. describes some professional meetingsPart III. Cloze (15%)One day when Jamie came home after school, his mother had on her worry face. He knew she was thinking of 1 “It’s bad out there. Black clouds are coming from the sea,” Jamie said. “Yes. I’m thinking of those fishing boats at sea,” she said.At that moment 2. went out. Jamie and his mother were in the dark.“The coastline will be in the dark,” Jamie’s mother said. She got more worried. 3 always come in threes. I broke my best glasses this morning, and my sister has the cold.“Now, don’t worry, mum. They’re right.” They’re 4 to come through this all right.But Jamie really worried about those fishing boats himself. The fishing boats would 5 the cove in the dark.Jamie took flares and rushed into the wind. There was a cliff by the sea. He started to climb. He 6 himself up hand over hand. At last he reached the top.He 7 three times. On the fourth try he fired off one of the flares. It rose and cut into the black sky in bright light. Then he saw an answering flare up at sea. Jamie fired off two more. He saw another answering flare up, then another, then another. The answering flares from the fishing boats showed they 8 the entrance to the cove but then changed course and were 9 sailing into the cove. They were almost home. Jamie helped 10 the fishermen of the village.A. the windB. the cloudsC. the rainD. the weather1. A. Jamie B. his motherC. the fireD. the lights2. A. Messages B. AccidentsC. TroublesD. Questions3. A. sure B. luckyC. safeD. ready4. A. lose B. missC. leaveD. forget5. A. pushed B. pulledC. carriedD. climbed6. A. made B. triedC. failedD. finished7. A. were at B. had foundC. had passed byD. were going into8. A. now B. thenC. onceD. again9. A. answer B. saveC. find outD. look forPart IV. Translation (25%)1.至于这本杂志,它刊载世界各地许多报刊杂志上文章的摘要。

同济大学继续教育学院夜大新生导读

同济大学继续教育学院夜大新生导读

同济大学继续教育学院夜大新生导读【2011年】祝贺你成为同济大学继续教育学院夜大学生!愿你在今后几年的学习中,学有所成,圆满完成学业。

现将有关教学环节做一简要介绍,希望对你有所帮助。

学籍管理入学必须参加全国成人高校统一招生考试,达到我院录取分数线,符合入学要求方能成为我院学生。

入学后经审核不符合入学条件者将被取消学籍。

一般每年8月为成人高考考试报名时间,10月中旬为考试时间。

个人信息确认学生个人信息是学院进行学生日常管理、新生电子注册以及毕业学历信息电子注册的重要依据,为了保证信息的准确性,夜大在新生入学后都要对学生个人信息进行一次全面的核对确认,其中姓名、性别、身份证号码如有变动,学生必须向班主任提交相关证明材料。

在读期间,如姓名、身份证号仍有改变,必须尽快填写《个人信息修改申请》并附上证明材料一起交给班主任。

学籍异动学生如要休学、退学、复学等,必须符合相应的条件,在相应的时间结点到夜大科提交学籍异动申请,填写相应表格,提交相关证明,经夜大科审核批准后方可进行(详见学生手册)。

教学计划教学计划教学计划是学校根据教育方针和培养目标而制订的专业人才培养实施方案,是教学管理部门组织和实施教学过程的主要依据,也是对教育、教学质量监控与评价的基础性文件。

学生修满专业教学计划规定的学分方可毕业。

1、学时和学分春、秋学期教学周为18周,包含考试周。

理论教学课程一般按1周学时计1学分。

毕业设计(论文)一般安排在最后一学期。

高起本、专升本专业毕业设计安排10-12周,毕业论文安排6-10周,1周计1学分。

高起专部分专业毕业环节一般安排8学分的专题讲座。

2、课程设置(1)基础课、专业基础课、专业课的学分比例原则上高起专专业为4:3:3;专升本专业为3:4:3。

(2)必修课及选修课①必修课:指本专业必须修读的课程。

一般占总学分的70%。

②选修课:属于扩大知识面的课程或专业拓展课程。

选修课分为限定选修课和任意选修课。

同济大学数据库课程考核试卷A卷秋季数据库期中考试英语参考答案

同济大学数据库课程考核试卷A卷秋季数据库期中考试英语参考答案

同济⼤学数据库课程考核试卷A卷秋季数据库期中考试英语参考答案同济⼤学课程考核试卷(A卷)2012 —2013 学年第⼀学期课号:10014501 课名:数据库系统原理(双语)考试考查:考试此卷选为:期中考试( )、期终考试( )、重考( ) 试卷年级专业学号姓名得分Ⅰ. Multiple choice (20 marks, 2 marks each)(C )1. Five basic relational algebra operations are , others can be derived from these operations.A. ?,-,π,σ,?B. ?,-,π,σ,C. ?,-,π,σ,?D. ?,÷,π,σ,(ABD)2. The following aggregation function(s) will neglect null value. A. SUM B. MAXC. COUNTD. A VG(A. )3. Given R, U={A,B,C}, F={B→C}, a decomposition of R is ρ={AB, BC}, and the decomposition is:A. lossless-join, dependency preservingB. lossless-join, not dependency preservingC. lossy-join, dependency preservingD. lossy-join, not dependency preserving(BD )4. When we generate relational schemas from an E-R diagram, the rules for relationship sets are:A. for a binary 1: n relationship set, translate it into a relation, and the primary key of the relationship set is the primary key of the “1” side entity set;B. for a binary 1: n relationship set, translate it into a relation, and the primary key of the relationship set is the primary key of the “n” side entity set;C. a binary 1: n relationship set can be united with the “1”side entity set, and translated into one relation;D. a binary 1: n relationship set can be united with the “n”side entity set, and translated into one relation;(ABC)5. If R∈BCNF, then:A. non-attributes are entirely functional dependent on non-key attributes;B. all key attributes are entirely functional dependent on each candidate key that does not contain them;C. all partial dependencies and transitive dependencies are removed for anyattributes;D. all anomalies are removed within any dependency scope.(AD)6. For PRIMARY KEY definition in CREATE TABLE, when a user wants to insert a tuple into the table, the RDBMS will:A. check for the primary key value, and deny the insertion if it is not unique;B. check for all attributes, and deny the insertion if there is one null value;C. check for all candidate key attributes, and deny the insertion if there is one null value;D. check for all primary key attributes, and deny the insertion if there is one null value(B. )7. Transforming ER diagram into relational data model belongs to the step ofA. Requirement analysisC. Conceptual design(ABD)8. When dealing with null value in SQL statements, the following correct is(are) .A. AGE IS NULLB. AGE IS NOT NULLC. AGE = NULLD. NOT (AGE IS NULL)(C )9. The global constraints in SQL statements are check clause based on tuples and .A. NOT NULL constraintB. Domain constraintC. AssertionD. Foreign Key clause(ACDE)10. A DBA’s duties are:A. database restoration and recovery;B. transaction processing and concurrency control;C. security and integrity control;D. performance monitoring, analyzing, and tuning;E. database reforming and restructuring.Ⅱ. Analysis (12 marks, 6 marks each)Are the following E/R diagrams good designs? Justify your answer and try to give better designs if they exist. If you feel they work well under some requirements but not under others, give specific examples. To simplify, keys are not underlined in the diagrams.a.Below is an E/R diagram for companies and employees. One constraint forthe E/R diagram below is that each employee can work in only onecompany.Solution:By making “manager” an attribute, the diagram maintains the one-to-one relationship. However, it does not guarantee that the manager is one of the employees.b.Below is an E/R diagram for a company database involving projects,departments, and employees. Each project can be sponsored by severaldepartments and monitored by several employees in the company. Eachdepartment can sponsor several projects. Each employee can monitor severalprojects and may work in several departments. An employee can monitor aproject that is not in his department.Solution:In this case a trade-off needs to be made between binary relationship and ternary relationship. The same information can be modeled more naturally using the E/R diagram as below. It’s not a good idea to blend the concept of “sponsor” and “monitor”together. Also, in the original diagram, we lost the information of which employee works in which company.Solution:Ⅲ. Relational Database Design and Query (50 marks)1.Assume four relations P, Q, R, and S containing the following tuples, respectively.Give out the results of the following expressions. (6 marks, 2 marks for each)P: A B C D Q: B C E R: B C E S: C Da b c d b d e d c a c d a b e f b c f b d e e f b c e f d c a b c e b d c d d e b b d e fa. P ? Qb. P ÷Sc. σ1=5(Q ×S) a.b.c.2. Consider a relation schema R, where U={A,B,C,D,E,G}, and the set of functional dependencies F={AB →C, C →A, BC →D, ACD →B, D →EG , BE →C, CG →BD, CE →AG}. (6 marks, 3 marks for each)a. Compute the attribute closure +F AB )(.b. Find a minimal cover for F.a. +F AB )( = ABCDEG b. A minimal cover for F is:{AB →C, C →A, BC →D, CD →B, D →E, D →G , BE →C, CG →D, CE →G}3. Consider the relation schema R, where U={A,B,C,D}, and F={A →B, C →A, C →D, D →B, B →C}. Suppose that ρ={R 1, R 2, R 3} is a decomposition of R, where R 1={A, B}, R 2={B, C}, and R 3={C, D}. Is the decomposition ρ of lossless? (5 marks) The decomposition ρ of is lossless.4.Given the relational schema R, U={A,B,C,D,E }, F={AC→BD, B→C,C→D, B→E};/doc/16d147d96ad97f192279168884868762cbaebbca.html e Armstrong axioms and related rules to proof the functional dependencyAC→E; (3 marks)b.Find a canonical cover Fc of F, and find all candidate keys, then point out R isin which normal form; (5 marks)c.Decompose R into 3NF, which the decomposition is lossless-join anddependency preserving. (5 marks)Solution:a. 由AC→BD得AC→B(分解规则);再由B→E,则有AC→E(传递规则)b. 对R中的函数依赖集F进⾏极⼩化处理,得最⼩依赖集Fm={AC→B, B→C, C→D, B→E},仍记为F;c. 判定R属于第⼏范式:R的候选码有:AC、AB;主属性为A、B、C;由C→D可见,⾮主属性D对码AC为部分函数依赖,故R?2NF, R∈1NF。

试题

试题

C D2012学年同济二附中高三期中考试历史试卷命题人:白玉林 时间:2012.11 考生注意:1.考试时间120分钟。

试卷满分150分。

2.本考试设试卷和答题纸两部分,试卷包括试题与答题要求;所有答题必须涂(选择题)或写(非选择题)在答题纸上;做在试卷上一律不得分。

3.答题前,务必在答题纸上填写准考证号和姓名.并将核对后的条形码贴在指定位置上。

4.答题纸与试卷在试题编号上是一一对应的,答题时应特别注意,不能错位。

一、选择题(共75分)以下每小题2分,共60分,每题只有一个正确的选项。

1.文明起源是多中心的,文明的传承与发展离不开人类的交往。

下列有关文明起源与交往示意图,较符合事实的是2.某上海文化考察团从上海出发到西安后,沿着唐代丝绸之路向西考察古代文明。

他们沿途可能接触到的古代文明代表依次是①《汉穆拉比法典》 ②《罗摩衍那》 ③甲骨文 ④帕特农神庙A .①②③④B .②①④③C .③②①④D .③①②④3.在古希腊文中,“民主政治”(demokrafia)一词由“人民”(demos)和“统治”(kratos)复A B合而成。

这说明,古代希腊的民主政治强调A .全体人民均享有民主政治权利B .民事案件均由陪审法庭判决C .公民的私有财产神圣不可侵犯D .公民的广泛参与和直接管理4.《十二铜表法》第九表第二条规定:‚不得为任何个人的利益,制定特别的法律。

‛以下《十二铜表法》中与该条款精神相悖的是A.债务人在拘禁期中,如愿意,可自费供养。

B.在夜间窃取耕地的庄稼或放牧的,如为适婚人,则处死以祭谷神;如为未适婚人, 则由长官酌情鞭打,并处以赔偿双倍于损害的罚金。

C.若死者无父系近亲,则其身后所遗的业产得由其族人取得。

D.折断自由人一骨的,处300阿斯的罚金;如被害人为奴隶,处150阿斯的罚金。

5.右图是某校历史学习兴趣小组,为研究某一问题而搜索到的有关资料的关键词,据此推测其主要关注的问题是A .欧洲君主专制的确立B .欧洲封建制度的产生C .德国宗教改革的影响D .中世纪城市自治斗争6.国内许多学者认为,二里头遗址的发现和发掘,为夏史研究开启了一扇大门,主要依据是A .出土了大量珍贵的文物B .能与有关夏文献相互印证C .中原一带文明发展较早D .出土了大量青铜器和玉器7.伏尔泰在《礼俗论》谈及中国古代一思想流派时叹言道:‚欧洲的王族同商人发现东方, 只晓得求财富,而哲学家则在那里发现了一个新的精神与物质的世界。

同济大学继续教育学院2021学年春季学期期终考试-《建筑结构抗震》

同济大学继续教育学院2021学年春季学期期终考试-《建筑结构抗震》

同济大学继续教育学院2021学年春季学期期终考试-《建筑结构抗震》一. 单项选择题(1):(每题有单个空格,每题2分,共15小题,共30分)1.以下地震类别中,发生次数最多的是。

[单选题] *A. 塌陷地震B. 火山地震C. 构造地震(正确答案)D. 人为地震2.震源到震中的距离称为。

[单选题] *A. 震中距B. 震源深度(正确答案)C. 地震烈度D. 地震震级3.中国地处世界最活跃的两大地震带和欧亚大陆地震带的交汇区域,是一个多地震国家。

[单选题] *A. 印度洋地震带B. 南极洲地震带C. 环太平洋地震带(正确答案)D. 非洲地震带4.地震波的传播以最快、横波次之,面波最慢。

[单选题] *A. 乐夫波B. 横波C. 瑞雷波D. 纵波(正确答案)5.是指地震对地面影响的强烈程度。

[单选题] *A. 地震烈度(正确答案)B. 地震震害C. 震源深度D. 地震震级6.设防烈度是一个地区抗震设防依据的地震烈度,中国的抗震设防烈度一般采用。

[单选题] *A. 众值烈度B. 罕遇烈度C. 基本烈度(正确答案)D. 小震烈度7.罕遇烈度,其基准期50年内超越概率定义。

[单选题] *A. 63.2%B. 31.8%C. 3~2%(正确答案)D. 10%8.选择建筑场地时,下列地段是对建筑抗震危险的地段。

[单选题] *A. 液化土B. 地震时可能发生地裂的地段(正确答案)C. 高耸孤立的山丘D. 古河道9.凹凸不规则,是指平面凹进的尺寸,大于相应投影方向总尺寸的。

[单选题] *A. 20%B. 30%(正确答案)C. 40%D. 50%10.建筑结构的地震影响系数的大小取决于设防烈度、阻尼比、自振周期、和设计地震分组。

[单选题] *A. 场地平面尺寸B. 荷载分项系数C. 场地类别(正确答案)D. 抗震等级11.出于结构安全的考虑,《抗震规范》增加了对各楼层水平地震剪力最小值的要求。

对基本周期大于5.0s、竖向不规则结构的薄弱层,9度时其最小剪力系数为。

2012同济大学机械设计考研真题与答案

2012同济大学机械设计考研真题与答案

各位同学我是同济大学2012届考生,2012年考上了同济大学车辆工程,为了给大家我提供一份整洁权威的同济大学机械设计真题答案和一份权威的专业课内部资料(含笔记和考试重点),我充分利用业余时间,终于完成啦。

扣扣QQ1440149098,各位同学到时候可以让大家加入一个复试和考试交流群,12月15日,和月底有一个视频讲座和大家交流同济大学的考试与复试。

主要资料有2007到2012年真题和答案,全部word高清版。

一份书本重点扫描版。

04到06自己做的手写版,还有一份考试重点和一本参考书(扫描版)。

各位同学好好加油,未来的你们就会为你今天遇到我而感到庆幸。

2010年同济大学硕士研究生入学考试试卷(部分)科目代码__812___ 科目名称____机械设计_____一、填空题(每格2分,共10分)1.螺纹连接防松,按其防松原理可分为_______防松、________防松和_______防松。

【考察重点】:这是第五章的考点,主要考察有螺纹连接防松的方式。

【答案解析】:摩擦;机械;破坏螺旋副;2.在不完全液体润滑滑动轴承设计中,限制比压p的主要目的是_____,限制pv的主要目的是_________。

【考察重点】:这是第十二章的考点,主要考察有不完全液体润滑滑动轴承的设计计算。

【答案解析】:防止油被挤压出去;限制温度德升高;二、选择题(每题2分,共20分)1.带有一个张紧轮的V带传动,V带每转过一周,V带的应力要变化_____。

A.3次B.4次C.6次D.8次【考察重点】:这是第八章的考点,主要考察有关带传动应力的问题。

【答案解析】:D2.在受轴向变载荷作用的紧螺栓连接中,为提高螺栓的疲劳强度,可采取的措施是______。

A.增大螺栓刚度b C ,减少被连接件刚度m CB.减少 b C ,增大m CC.增大b C 和m CD.减少b C 和m C【考察重点】:这是第五章的考点,主要考察有关紧螺栓连接强度的问题。

2024学年同济大学二附中高二数学第一学期期中考试卷附答案解析

2024学年同济大学二附中高二数学第一学期期中考试卷附答案解析

2024学年同济大学二附中高二数学第一学期期中考试卷满分:150分,完成时间:120分钟一、填空题(本题满分54分,共12小题,第1-6题每题4分,7-12题每题5分)1.在空间中,如果两条直线没有交点,那么这两条直线的位置关系是___________.2.半径为2的球的表面积为________.3.已知长方体1111ABCD A B C D -的棱11AD AA ==,2AB =,则异面直线BD 与11B C 所成角的余弦值为______.4.在四面体P ABC -中,若底面ABC 的一个法向量为()1,1,0n = ,且()2,2,1CP =- ,则顶点P 到底面ABC 的距离为_____________.5.已知一圆锥侧面展开图是一半径为2的半圆,则该圆锥的侧面积为___________.6.如图,一个水平放置的平面图形的斜二测直观图是直角梯形OA B C ''',且//OA B C ''',24OA B C '''==,2A B ''=,则该平面图形的面积为_________.7.三棱锥P ABC -中,三条侧棱PA PB PC ==,则顶点P 在平面ABC 内的射影O 是ABC V 的______.(填“内心”、“外心”、“重心”、“垂心”)8.在空间四边形ABCD 中,E ,F ,G ,H 分别是边AB ,BC ,CD ,DA 的中点,若四边形对角线2==AC BD ,对角线AC 与BD 所成的角为π3,则FH =______.9.如图,在圆柱O 1O 2内有一个球O ,该球与圆柱的上、下底面及母线均相切.记圆柱O 1O 2的体积为V 1,球O 的体积为V 2,则12V V 的值是_____10.已知二面角AB αβ--为30°,P 是半平面α内一点,点P 到平面β的距离是1,则点P 在平面β内的投影到AB 的距离是_________.11.如图是底面半径为3的圆锥,将其放倒在一平面上,使圆锥在此平面内绕圆锥顶点S 滚动,当这个圆锥在平面内转回原位置时,圆锥本身恰好滚动了4周,则圆锥的母线长为_____12.如图,正方体1111ABCD A B C D -的棱长为4,点P 在正方形ABCD 的边界及其内部运动.平面区域W 由所有满足14A P ≤≤的点P 组成,则四面体1P A BC -的体积的取值范围_________.二、选择题(共4小题,第13、14题每题4分,15、16题每题5分)13.已知直线l 和平面α,则“l 垂直于α内的两条直线”是“l α⊥”的().A.充分非必要条件 B.必要非充分条件 C.充要条件 D.非充分非必要条件14.把一个圆锥截成圆台,已知圆台的上、下底面半径的比为1:4,母线(原圆锥母线在圆台中的部分)长为12,则原圆锥的母线长为()A.16 B.18 C.20 D.2215.m n 、为空间中两条直线,αβ、为空间中两个不同平面,下列命题中正确的个数为()①二面角的范围是[)0,π;②经过3个点有且只有一个平面;③若m n 、为两条异面直线,,,//m n m αββ⊂⊂,则//n α.④若m n 、为两条异面直线,且//,//,//,//m n m n ααββ,则//αβ.A.0B.1C.2D.316.《九章算术》中将底面为直角三角形且侧棱垂直于底面的三棱柱称为“堑堵”;底面为矩形,一条侧棱垂直于底面的四棱锥称之为“阳马”;四个面均为直角三角形的四面体称为“鳖臑”.如图,在堑堵111ABC A B C -中,AC BC ⊥,且12AA AB ==.下列说法错误..的是()A.四棱锥11B A ACC -为“阳马”B.四面体11AC CB 为“鳖臑”C.四棱锥11B A ACC -体积的最大值为23D.过A 点作1AE A B ⊥于点E ,过E 点作1EF A B ⊥于点F ,则1A B ⊥面AEF三、解答题(本题满分78分,共5小题)17.如图,棱长为2的正方体1111ABCD A B C D -中,M N P 、、分别是1111C D CC AA 、、的中点.(1)证明://MN 平面11ABB A .(2)求异面直线1PD 与MN 所成角的大小.(结果用反三角表示)18.如图,已知PA =AC =PC =AB =a ,PA AB ⊥,AC AB ⊥,M 为AC 的中点.(1)求证:PM ⊥平面ABC ;(2)求直线PB 与平面ABC 所成角的大小.19.现需要设计一个仓库,由上、下两部分组成,上部的形状是正四棱锥1111P A B C D -,下部的形状是正四棱柱1111ABCD A B C D -(如图所示),并要求正四棱柱的高1O O 是正四棱锥的高1PO 的4倍.(1)若m 6AB =,12m PO =,则仓库的容积是多少?(2)若正四棱锥的侧棱长为6m ,当1PO 为多少时,下部的正四棱柱侧面积最大,最大面积是多少?20.如图,AB 是圆柱的底面直径,2AB =,PA 是圆柱的母线且2PA =,点C 是圆柱底面圆周上的点.(1)求圆柱的表面积;(2)证明:平面PBC ⊥平面PAC ;(3)若1AC =,D 是PB 的中点,点E 在线段PA 上,求CE ED +的最小值.21.已知点P 是边长为2的菱形ABCD 所在平面外一点,且点P 在底面ABCD 上的射影是AC 与BD 的交点O ,已知60BAD ∠=︒,PDB △是等边三角形.(1)求证:AC PD ⊥;(2)求点D 到平面PBC 的距离;(3)若点E 是线段AD 上的动点,问:点E 在何处时,直线PE 与平面PBC 所成的角最大?求出最大角的正弦值,并说明点E 此时所在的位置.同济大学第二附属中学2024学年第一学期期中考试高二年级数学学科试卷满分:150分,完成时间:120分钟一、填空题(本题满分54分,共12小题,第1-6题每题4分,7-12题每题5分)1.在空间中,如果两条直线没有交点,那么这两条直线的位置关系是___________.【答案】平行或异面【解析】【分析】根据空间中两直线的位置关系即可判断.【详解】空间中的直线没有公共点,则两直线要么平行,要么是异面直线.故答案为:平行或异面2.半径为2的球的表面积为________.【答案】16π【解析】【分析】代入球的表面积公式:2=4S R π表即可求得.【详解】2R = ,∴由球的表面积2=4S R π表公式可得,2=42=16S ππ⨯⨯球表,故答案为:16π【点睛】本题考查球的表面积公式;属于基础题.3.已知长方体1111ABCD A B C D -的棱11AD AA ==,2AB =,则异面直线BD 与11B C 所成角的余弦值为______.【答案】5【解析】【分析】由定义说明DBC ∠是异面直线BD 与11B C 所成角或其补角,然后计算.【详解】因为11//B C BC ,所以DBC ∠是异面直线BD 与11B C 所成角或其补角,在直角BDC中,BD ==,5cos 5BC CBD BD ∠===,故答案为:5.4.在四面体P ABC -中,若底面ABC 的一个法向量为()1,1,0n = ,且()2,2,1CP =- ,则顶点P 到底面ABC 的距离为_____________.【答案】【解析】【分析】根据点面距公式代入计算即可得.【详解】由点面距公式得d n CP n ==⋅==故答案为:5.已知一圆锥侧面展开图是一半径为2的半圆,则该圆锥的侧面积为___________.【答案】2π【解析】【分析】根据圆锥侧面展开图与圆锥侧面的关系求出圆锥底面圆半径即可计算得解.【详解】设圆锥底面圆半径为r ,则该圆锥底面圆周长为2r π,因圆锥侧面展开图是一半径为2的半圆,则半圆弧长为2π,依题意,22ππ=r ,解得1r =,显然圆锥的母线长2l =,则圆锥侧面积2S rl ππ==,所以圆锥的侧面积为2π.故答案为:2π6.如图,一个水平放置的平面图形的斜二测直观图是直角梯形OA B C ''',且//OA B C ''',24OA B C '''==,2A B ''=,则该平面图形的面积为_________.【答案】122【解析】【分析】首先求出OC ',再画出平面图形,从而求出其面积.【详解】因为24OA B C '''==,2A B ''=,所以()2242222OC '=-+=由直观图可得如下平面图形,则24OA BC ==,242OC OC '==,所以()124222OABC S =⨯+⨯=.故答案为:1227.三棱锥P ABC -中,三条侧棱PA PB PC ==,则顶点P 在平面ABC 内的射影O 是ABC V 的______.(填“内心”、“外心”、“重心”、“垂心”)【答案】外心【解析】【分析】由已知可得顶点P 在底面ABC 上的射影O 到底面三角形三个顶点的距离相等,即O 为ABC V 的外心.【详解】如图,设顶点P 在底面ABC 内的射影为O ,则⊥PO 平面ABC ,连接OA ,OB ,OC ,OA ,OB ,OC 在平面ABC 内,∴PO OA ⊥,PO OB ⊥,PO OC ⊥,∴POA ,POB V ,POC △都是直角三角形,PA PB PC ==,∴POA ,POB V 和POC △三个三角形全等,从而有OA OB OC ==,所以O 为ABC V 的外心.故答案为:外心.8.在空间四边形ABCD 中,E ,F ,G ,H 分别是边AB ,BC ,CD ,DA 的中点,若四边形对角线2==AC BD ,对角线AC 与BD 所成的角为π3,则FH =______.【答案】1【解析】【分析】由题意可知四边形EFGH 为菱形,且知菱形相邻的两个角分别为π2π,33,再由所给边长即可求得FH 的长.【详解】如图,由,,,E F G H 分别是,,,AB BC CD DA 的中点,得1////,12EF AC HG EF HG AC ===,1////,12EH BD FG EH FG BD ===,则四边形EFGH 为菱形,又AC 与BD 所成的角为π3,于是直线EF 与EH 所成角为π3,即菱形EFGH 的边长为1,相邻两个内角分别为π2π,33,即π3FEH ∠=或2π3FEH ∠=,当π3FEH ∠=时,1FH EF ==,当2π3FEH ∠=时,2sin60FH EF ==所以1FH =或FH =故答案为:19.如图,在圆柱O 1O 2内有一个球O ,该球与圆柱的上、下底面及母线均相切.记圆柱O 1O 2的体积为V 1,球O 的体积为V 2,则12V V 的值是_____【答案】32【解析】【详解】设球半径为r ,则12=B 2×243B 3=32.故答案为32.点睛:空间几何体体积问题的常见类型及解题策略:①若给定的几何体是可直接用公式求解的柱体、锥体或台体,则可直接利用公式进行求解;②若所给定的几何体的体积不能直接利用公式得出,则常用转换法、分割法、补形法等方法进行求解.10.已知二面角AB αβ--为30°,P 是半平面α内一点,点P 到平面β的距离是1,则点P 在平面β内的投影到AB 的距离是_________.【解析】【分析】设点P 在平面β内的投影为点Q ,作PO AB ⊥于点O ,连接OQ ,证明POQ ∠即为二面角AB αβ--的平面角,再解Rt POQ △即可.【详解】如图,设点P 在平面β内的投影为点Q ,则PQ β⊥,1PQ =,作PO AB ⊥于点O ,连接OQ ,因为PQ β⊥,,OQ AB β⊂,所以,PQ AB PQ OQ ⊥⊥,又,,,PO AB PO PQ P PQ PO ⊥⋂=⊂平面POQ ,所以AB ⊥平面POQ ,又OQ ⊂平面POQ ,所以AB OQ ⊥,所以POQ ∠即为二面角AB αβ--的平面角,所以30POQ ∠=︒,在Rt POQ △中,30,1POQ PQ ∠=︒=,所以OQ =即点P 在平面β内的投影到AB11.如图是底面半径为3的圆锥,将其放倒在一平面上,使圆锥在此平面内绕圆锥顶点S 滚动,当这个圆锥在平面内转回原位置时,圆锥本身恰好滚动了4周,则圆锥的母线长为_____【答案】12【解析】【分析】设圆锥的母线长为l,求出以S 为圆心,SA 为半径的圆的面积以及圆锥的侧面积,根据题意,列出方程即可求得答案.【详解】设圆锥的母线长为l,则以S 为圆心,SA 为半径的圆的面积为2πl ,又圆锥的侧面积为π33πl l ⨯⨯=,因为当这个圆锥在平面内转回原位置时,圆锥本身恰好滚动了4周,所以2π43πl l =⨯,解得12l =,故答案为:1212.如图,正方体1111ABCD A B C D -的棱长为4,点P 在正方形ABCD 的边界及其内部运动.平面区域W 由所有满足14A P ≤≤的点P 组成,则四面体1P A BC -的体积的取值范围_________.【答案】1632,33⎡⎤⎢⎥⎣⎦【解析】【分析】连接AP ,由线面垂直的性质得到1A A AP ⊥,再由勾股定理求出0||2AP ≤≤,即可得到P 以A 为圆心2为半径的14圆面上,再根据1111,3P A BC A PBC PBC V V AA S --==⋅ 得到当P 在边AD 上时四面体的体积最大,当P 在边AB 的中点时四面体的体积最小,再根据面体的体积公式计算可得取值范围.【详解】连接AP ,如图所示,因为1A A ⊥平面ABCD ,AP ⊂平面ABCD ,所以1A A AP ⊥,∵14A A =,由145A P ≤≤2211||A P AP AA =+,则0||2AP ≤≤;所以P 在以A 为圆心2为半径的14圆面上,由题意可知,11113P A BC A PBC PBC V V AA S --==⋅ ,所以当P 在边AD 上时,四面体1P A BC -的体积的最大值是1132444323⨯⨯⨯⨯=.所以当P 在边AB 的中点时,PBC S 的面积取得最小值,此时14242PBC S =⨯⨯=△,所以四面体1P A BC -的体积的最小值是1164433⨯⨯=,所以11632,33P A BC V -⎡⎤∈⎢⎥⎣⎦,故答案为:1632,33⎡⎤⎢⎥⎣⎦.【点睛】思路点睛:求解三棱锥体积的最值问题,要找准突破口,也即是按三棱锥的体积公式13V Sh =,通常会有以下两种:①如果底面积固定,则通过找高的最值来进行求解;②如果高已知确定,则求底面积的最值来进行求解(如本题).二、选择题(共4小题,第13、14题每题4分,15、16题每题5分)13.已知直线l 和平面α,则“l 垂直于α内的两条直线”是“l α⊥”的().A.充分非必要条件B.必要非充分条件C.充要条件D.非充分非必要条件【答案】B【分析】利用直线与平面垂直的判定定理,即可得出结论.【详解】根据直线与平面垂直的判定定理可知:如果一条直线垂直于平面内的两条相交直线,那么这条直线垂直于这个平面.而“l 垂直于α内的两条直线”,没有满足相交,所以不一定能推出直线与平面垂直,但是如果一条直线与平面垂直,一定能推出这条直线垂直于平面内的所有直线,即可得:“l 垂直于α内的两条直线”是“l α⊥”的必要不充分条件.故选:B .14.把一个圆锥截成圆台,已知圆台的上、下底面半径的比为1:4,母线(原圆锥母线在圆台中的部分)长为12,则原圆锥的母线长为()A.16B.18C.20D.22【答案】A【分析】根据圆台的几何特征利用三角形相似即可求得结果.【详解】由题意可得,几何体如下图所示:取轴截面可知,圆台的上、下底面半径的比为14CD AB =,且//,12CD AB BD =,设圆锥的母线长为l ,根据相似比可得1214CD ED l AB EB l -===,解得16=l ,即原圆锥的母线长为16.故选:A.15.m n 、为空间中两条直线,αβ、为空间中两个不同平面,下列命题中正确的个数为()①二面角的范围是[)0,π;②经过3个点有且只有一个平面;③若m n 、为两条异面直线,,,//m n m αββ⊂⊂,则//n α.④若m n 、为两条异面直线,且//,//,//,//m n m n ααββ,则//αβ.A.0 B.1C.2D.3【答案】B【分析】利用二面角的取值范围可判断①,当三点共线时可判断②,利用线面平行的判定方法可判断③,利用线面平行的性质以及面面平行的判定定理可判断④【详解】对于①,二面角的范围是[]0,π,①错;对于②,若三点共线,则经过这个点有无数个平面,②错对于③,若m n 、为两条异面直线,,,//m n m αββ⊂⊂,则n 与α可能平行也可能相交,故③错误;对于④,因为//,//m m αβ,过直线m 作平面γ,使得,b a γαβγ== ,由线面平行的性质定理可得//,//m a m b ,则//a b ,因为,a b αα⊄⊂,则//a α,因为//,//αβn n ,过直线n 作平面ϕ,使得,d c ϕαβϕ== ,由线面平行的性质定理可得//,//n c n d ,则//c d ,因为,c d αα⊄⊂,则//c α,若//a c ,则//m n ,这与m n 、为两条异面直线矛盾,故,a c 相交,又因为,a c β⊂,所以//αβ,故④对,故选:B16.《九章算术》中将底面为直角三角形且侧棱垂直于底面的三棱柱称为“堑堵”;底面为矩形,一条侧棱垂直于底面的四棱锥称之为“阳马”;四个面均为直角三角形的四面体称为“鳖臑”.如图,在堑堵111ABC A B C -中,AC BC ⊥,且12AA AB ==.下列说法错误..的是()A.四棱锥11B A ACC -为“阳马”B.四面体11AC CB 为“鳖臑”C.四棱锥11B A ACC -体积的最大值为23D.过A 点作1AE A B ⊥于点E ,过E 点作1EF A B ⊥于点F ,则1A B ⊥面AEF 【答案】C 【解析】【分析】根据“阳马”和“鳖膈”的定义,可判断A ,B 的正误;当且仅当AC BC =时,四棱锥11B A ACC -体积有最大值,求值可判断C 的正误;根据题意可证1A B ⊥平面AEF ,进而判断D 的正误.【详解】底面为直角三角形且侧棱垂直于底面的三棱柱称为“堑堵”,∴在堑堵111ABC A B C -中,AC BC ⊥,侧棱1AA ⊥平面ABC ,A 选项,∴1AA BC ⊥,又AC BC ⊥,且1AA AC A = ,则⊥BC 平面11A ACC ,∴四棱锥11B A ACC -为“阳马”,故A 正确;B 选项,由AC BC ⊥,即11A C BC ⊥,又111AC C C ⊥且1BC C C C ⋂=,∴11A C ⊥平面11BB C C ,∴111A C BC ⊥,则11A BC V 为直角三角形,又由⊥BC 平面11AAC C ,得1A BC 为直角三角形,由“堑堵”的定义可得11AC C 为直角三角形,1CC B 为直角三角形,∴四面体11AC CB 为“鳖膈”,故B 正确;C 选项,在底面有2242AC BC AC BC =+≥⋅,即2AC BC ⋅≤,当且仅当AC BC ==1111111243333B A ACC A ACC V S BC AA AC BC AC BC -=⨯=⨯⨯=⨯≤,最大值为43,故C 错误;D 选项,因为1AE A B ⊥,1EF A B ⊥,AE EF E ⋂=,所以1A B ⊥平面AEF ,故D 正确;故选:C三、解答题(本题满分78分,共5小题)17.如图,棱长为2的正方体1111ABCD A B C D -中,M N P 、、分别是1111C D CC AA 、、的中点.(1)证明://MN 平面11ABB A .(2)求异面直线1PD 与MN 所成角的大小.(结果用反三角表示)【答案】(1)证明见解析(2)arccos 10【解析】【分析】(1)构造线线平行,根据线面平行的判定定理证明线面平行.(2)根据线线平行,找出异面直线所成的角,在三角形中,利用余弦定理求角的余弦.【小问1详解】如图:连接1A B ,1D C .因为1111ABCD A B C D -为正方体,所以11//A B CD .又,M 、N 分别是11C D 、1CC 的中点,所以1//MN CD ,所以1//MN A B ,1A B ⊂平面11ABB A ,MN ⊄平面11ABB A ,所以//MN 平面11ABB A .【小问2详解】如图:连接PC 、1PD 因为1//MN CD ,所以1PDC ∠即为异面直线MN 与1PD 所成的角,设为θ.在1PCD V 中,221111145PD PA A D =+=+=,122CD =,2221443PC PA AB BC =++=++=.所以2221111cos θ2D P D C PC D P D C +-=⨯⋅10102522==⨯⨯.所以异面直线1PD 与MN 所成的角为:10arccos10.18.如图,已知PA =AC =PC =AB =a ,PA AB ⊥,AC AB ⊥,M 为AC 的中点.(1)求证:PM ⊥平面ABC ;(2)求直线PB 与平面ABC 所成角的大小.【答案】(1)见解析(2)6arcsin4【解析】【分析】(1)推导出PM AC ⊥,PM AB ⊥,由此能证明PM ⊥平面ABC ;(2)连结BM ,则PBM ∠是直线PB 和平面ABC 所成的角,由此能求出直线PB 和平面ABC 所成的角.【小问1详解】证明:因为PAC 为等边三角形,且M 为AC 的中点,所以PM AC ⊥.又PA AB ⊥,AC AB ⊥,且PA AC A = ,所以BA ⊥平面PAC .又PM 在平面PAC 内,所以BA PM ⊥.因为AB AC A ⋂=,且BA PM ⊥,PM AC ⊥,所以PM ⊥平面ABC .【小问2详解】解:连结BM ,由(1)知PM ⊥平面ABC ,所以PBM ∠是直线PB 和平面ABC 所成的角.因为PAC 为等边三角形,所以32PM a =.又PAB 为等腰直角三角形,且π2∠=PAB ,所以PB =.因为PM BM ⊥,所以sin 4PBM PM PB ∠==,则arcsin4PBM =∠所以直线PB 和平面ABC 所成的角的大小等于6arcsin4.19.现需要设计一个仓库,由上、下两部分组成,上部的形状是正四棱锥1111P A B C D -,下部的形状是正四棱柱1111ABCD A B C D -(如图所示),并要求正四棱柱的高1O O 是正四棱锥的高1PO 的4倍.(1)若m 6AB =,12m PO =,则仓库的容积是多少?(2)若正四棱锥的侧棱长为6m ,当1PO 为多少时,下部的正四棱柱侧面积最大,最大面积是多少?【答案】(1)3312m(2),2【解析】【分析】(1)明确柱体与锥体积公式的区别,分别代入对应公式求解;(2)先根据面积关系建立函数解析式,()S x =,然后利用二次函数性质求其最值.【小问1详解】由12PO =知1148OO PO ==.因为116A B AB ==,所以正四棱锥1111P A B C D -的体积()22311111=6224m ;33V A B PO ⋅⋅=⨯⨯=锥正四棱柱1111ABCD A B C D -的体积()2231=68288m .V AB OO ⋅=⨯=柱所以仓库的容积()324288312m V V V =+=+=锥柱.【小问2详解】设1m PO x =,下部分的侧面积为()S x ,则14m OO x =,1111A O A B ==111()46)S x A B OO x =⋅==<<,设()()()222422363618324f x xx xx x =-=-+=--+,当218x =,即x =max ()324f x =,max ()S x =即当1PO 为2.20.如图,AB 是圆柱的底面直径,2AB =,PA 是圆柱的母线且2PA =,点C 是圆柱底面圆周上的点.(1)求圆柱的表面积;(2)证明:平面PBC ⊥平面PAC ;(3)若1AC =,D 是PB 的中点,点E 在线段PA 上,求CE ED +的最小值.【答案】(1)6π(2)证明见解析(3【解析】【分析】(1)根据圆柱求表面积公式即可求解.(2)先证⊥BC 平面PAC ,再利用面面垂直的判定定理判定即可.(3)先分析得将PAC 绕着PA 旋转到PC ',使其与PAB 共面,且C '在AB 的反向延长线上,当D ,E ,C '三点共线时,CE ED +的最小值为C D ',通过解三角形求C D '即可.【小问1详解】根据题意,圆柱的底面半径12ABr ==,圆柱的高2h PA ==,圆柱的上下底面积和为222π2πS r ==底,圆柱的侧面积为2πr =4πS h =⋅侧,所以圆柱的表面积为26πS S S =+=底侧【小问2详解】由题意可知,PA ⊥底面ABC ,⊂BC 底面ABC ,则PA BC ⊥,由直径所对的圆周角为直角,可得BC AC ⊥,又PA AC A = ,PA ⊂平面PAC ,AC ⊂平面PAC ,所以⊥BC 平面PAC ,又因为⊂BC 平面PBC ,所以平面PBC ⊥平面PAC 【小问3详解】将PAC 绕着PA 旋转到PC ',使其与PAB 共面,且C '在AB 的反向延长线上,当D ,E ,C '三点共线时,CE ED +的最小值为C D ',因为2PA =,2AB =,PA AB ⊥,PB ==2tan 12PA PBA AB ∠===,所以π4PBA ∠=,12BD BP ==,213BC BA AC '=+=+=,所以在三角形C BD '中,由余弦定理可得C D =',所以CE ED +.21.已知点P 是边长为2的菱形ABCD 所在平面外一点,且点P 在底面ABCD 上的射影是AC 与BD 的交点O ,已知60BAD ∠=︒,PDB △是等边三角形.(1)求证:AC PD ⊥;(2)求点D 到平面PBC 的距离;(3)若点E 是线段AD 上的动点,问:点E 在何处时,直线PE 与平面PBC 所成的角最大?求出最大角的正弦值,并说明点E 此时所在的位置.【答案】(1)证明见解析(2)5(3)E 在线段AD 上靠近D 点的14处,4sin 5θ=【解析】【分析】(1)由题可得⊥PO 平面ABCD ,故⊥PO AC .根据菱形的性质可得BD ⊥AC ,再根据线面垂直的判定定理与性质定理即可证明;(2)根据题干数据结合D PBC P BDC V V --=即可求解;(3)由线面平行的判定定理可得AD ∥平面PBC ,可得E 到平面PBC 的距离即为D 到平面PBC 的距离h ,过E 作垂线⊥EF 平面PBC 交于点F ,要使θ最大,则需使PE 最小,此时PE AD ⊥,从而可求解.【小问1详解】因为点P 在底面ABCD 上的射影是AC 与BD 的交点O ,所以⊥PO 平面ABCD .因为AC ⊂平面ABCD ,所以⊥PO AC .因为四边形ABCD 为菱形,所以BD ⊥AC .因为,,PO BD O PO BD ⋂=⊂平面PBD ,所以AC ⊥平面PBD .因为BD ⊂平面PBD ,所以AC PD ⊥.【小问2详解】由题意可得ABD △、BCD △与PBD △都是边长为2的等边三角形,所以PO AO CO ===,122BDC S =⨯=△.所以PC =因为2BP BC ==,所以122PBC S ==△.设点D 到平面PBC 的距离为h ,由D PBC P BDC V V --=得1133PBC BDC S h S OP ⋅=⋅△△,=5h =.故点D 到平面PBC 的距离为5.【小问3详解】设直线PE 与平面PBC 所成的角为θ,AD BC AD ⇒∥∥ 平面PBC ,∴E 到平面PBC 的距离即为D 到平面PBC 的距离h .过E 作垂线⊥EF 平面PBC 交于点F ,则EPF θ=∠,此时sin EF PE θ=θ最大,则需使PE 最小,此时PE AD ⊥.由题意可知:1,OD OA ==,因为⊥PO 平面ABCD ,且PO =,所以PA ==,2PD ==,在PAD △中,由余弦定理可得:222cos24AP AD PD PAD AP AD +-∠==⋅,所以sin 4PAD ∠=,由面积相等11sin 22PAD S AP AD PAD AD PE =⋅∠=⋅ ,即1122242PE ⨯=⨯⨯,经计算得,2PE =12DE ==,则4sin 5θ=,此时E 在线段AD 上靠近D 点的14处.。

同济大学2011-2012材料力学期中测验

同济大学2011-2012材料力学期中测验

☆☆☆☆☆ 材料力学组卷系统(2012A 版)☆☆☆☆☆Libr.UpDate T111028本卷满分:100分同济大学统一命题纸(A卷)姓名_____________学号_____________专业______________ 得分_____2011-2012学年第一学期·期中测验课号:125005课名:材料力学一、考生应试时必须携带考生证或身份证,以备查对,考生必须按照考场座位表或监考教师指定的座位就坐; 二、答卷时不准互借文具(包括计算器等)。

试题纸上如有字迹不清等问题,考生应举手请示监考教师解决; 三、考生应独立答卷,严禁左顾右盼、抄袭或看别人答卷等作弊行为,如有违反,当场取消考试资格,答卷作废。

注意得 累分 计选择题(4题20分)填空题(4题20分)证明题(0题 0分)计算题(4题60分)累 计脆性材料具有以下哪种力学性质:(A)试件拉伸过程中出现屈服现象;(B)压缩强度极限比拉伸强度极限大得多;(C)抗冲击性能比塑性材料好;(D)若构件因开孔造成应力集中现象,对强度无明显影响。

正确答案是______。

图示A和B的直径都为d,则两者中最大切应力为: (A)4bF/(aπd ); (B)4(a+b)F/(aπd ); (C)4(a+b)F/(bπd ); (D)4aF/(bπd )。

正确答案是______。

2222 1.( 5分)[本题得分______]2.( 5分)[本题得分______][选择题-第2题图]选择题(共4题20分)FFBAab☆☆☆☆☆材料力学组卷系统(2012A版)☆☆☆☆☆组卷时间:2011年11月02日[01:32PM]☆☆☆☆☆材料力学组卷系统(2012A版)☆☆☆☆☆组卷时间:2011年11月02日[01:32PM]ISBN 978-7-89469-635-9- THE END 图示简支梁由三块厚度相同的木板胶合而成。

 胶合缝的容许切应力[τ]=3.5MPa。

英语考试模拟

英语考试模拟

同济大学继续教育学院2012学年春季学期期终考试课程考试题(复习卷)学号第一部分:词汇与结构(共30小题;每小题1分,满分30分)1. The little boy ____ crying until his mother came back.A. stoppedB. didn’t stopC. stopsD. doesn’t stop2. The idea sounds good, but will it work ____?A. practicalB. in practiceC. out of practiceD. by practice3. Don’t ____ about getting dinner for me today.A. puzzleB. interruptC. botherD. interfere4. She didn’t’ feel well today, so she didn’t ____ anything.A. feel like to eatB. feel eatingC. feel to eatD. feel like eating5. We should consider problems ____ the people’s interests.A. in terms ofB. in form ofC. in case ofD. in spite of6. It’s ____ that he will succeed.A. high likelyB. high possiblyC. highly probablyD. highly likely7. His chief difficulty ____ people ignorant of what had happened.A. lie in keepingB. lies with keepingC. lay in keepingD. lay at keeping8. Social customs are ____ from what they used to be fifty years ago.A. differB. differentC. differenceD. indifferent9. He won’t go on doing the job ____ he gets his salary raised.A. whenB. afterC. ifD. unless10. The doctor’s mistakes in jud gment ____ the death of the patient.A. resulted fromB. broke offC. led toD. brought out1.To be frank, I don’t like Jack. His rather superior manner ______ on me.A. jamsB. jarsC. irritatesD. upsets2.This entrance is in ______ use: do not block it.A. constantB. tenderC. creativeD. critical3.We are all ______ to dislike those who are critical of us.A. suspiciousB. easyC. liableD. desirable4.At the dinner party last night Christine felt greatly ______ because her mother kept braggingabout her accomplishments at school.A. alarmedB. disappointedC. ashamedD. embarrassed5.The ______ breakdowns of the computer has caused serious delays in our work.A. continuousB. continuedC. continuingD. continual6.“Take the medicine and go to bed early. If the headache ______, you should come for anX-ray examination,” said the doctor.A. recursB. happensC. recoversD. repeats7.______ by a strange loud noise downstairs, the two girls jumped from their bed and screamed.A. StunnedB. AmazedC. PromotedD. Startled8.Our trip to Beijing ______ with the visit of my cousin Lucy’s family. So we had a greatreunion at the foot of the Great Wall.A. recurredB. coincidedC. blendedD. occurred9.Mr. White translated not only from the German but also, ______ from the Russian.A. in occasionB. with occasionC. on occasionD. occasional10.The WTO is intended to ______ trade among its member states.A. preemptB. proposeC. promoteD. propagate11.To use this machine, first ______ the correct coins, then select the drink you want and pressthe button.A. reset C. insert C. revert D. insist12.The company offered a $5000 ______ for the finder of the lost document.A. wageB. rewardC. bonusD. salary13.An international effort is required to cope with the ______ needs of the earthquake victims.A. universalB. urgentC. uniqueD. uneasy14.Do you have anything ______ to this material but cheaper?A. sameB. familiarC. similarD. alike15.The spokesman made the ______ when commenting on the strike.A. remarkB. reviewC. rescueD. reward16.She wishes that we ______ her the candy yesterday because she’s on a diet.A. hadn’t sentB. didn’t sendC. wouldn’t sendD. shouldn’tsend17.Learning is ______. Learning is always rewarding.A. worthB. worthyC. worthwhileD. worthless18.The ______ were still filled with Chinese Dutch fans who came all the way to cheer for theirteam.A. standsB. standingsC. standD. standing19.A number of laws have been implemented to prevent those officials from ______ their power.A. amusingB. abusingC. musingD. using20.______ is not known yet what will be the main topic for their discussion.A. WhatB. ThisC. ThatD. It第三部分:完形填空(共10小题;每小题1.5分,满分15分)At one time Einstein traveled all over the United States giving lecture. He traveled __1__ car, and soon became quite friendly __2__ the driver.The driver always listened to Einstein’s lectur e, which the great scientist __3__ again and again. One day, he told Einstein that he knew the __4__ so well that he was sure he could give it himself. Ei nstein smiled and said, “why __5__ yo u give the lecture for me next time?” The driver agreed. That evening __6__ of them went along to the lecture hall. Nobody there had seen Einstein __7__. As the driver took his place on the stage everybody clapped. Then be began the lecture. Sureenough, he did not make a __8__ mistake. It was a great success, and when it was over, people clapped and clapped. Then he started to leave, __9__ hands with everybody, __10__ Einstein followed quietly a few steps behind.1. A. in B. with C. without D. by2. A. with B. for C. to D. on3. A. told B. gave C. said D. talked4. A. lesson B. speech C. talk D. lecture5. A. do B. don’t C. didn’t D. will6. A. none B. either C. both D. neither7. A. before B. ago C. since D. after8. A. single B. simple C. serious D. important9. A. to shake B. shake C. shaking D. by shaking10. A. when B. while C. before D. after第四部分:翻译(共5题;每题5分,总分25分)(参阅课本练习)1.背离传统需要极大的勇气。

2024-2025学年上海市杨浦区同济大学一附中高三(上)期中数学试卷(含答案)

2024-2025学年上海市杨浦区同济大学一附中高三(上)期中数学试卷(含答案)

2024-2025学年上海市杨浦区同济大学一附中高三(上)期中数学试卷一、单选题:本题共4小题,共18分。

在每小题给出的选项中,只有一项是符合题目要求的。

1.下列说法正确的是( )A. 如果直线l 不平行于平面α,那么平面α内不存在与l 平行的直线B. 如果直线l//平面α,平面α//平面β,那么直线l//平面βC. 如果直线l 与平面α相交,平面α//平面β,那么直线l 与平面β也相交D. 如果平面α⊥平面γ,平面β⊥平面γ,那么平面α//平面β2.某单位为了解该单位党员开展学习党史知识活动情况,随机抽取了部分党员,对他们一周的党史学习时间进行了统计,统计数据如下表所示:党史学习时间(小时)7891011党员人数610987则该单位党员一周学习党史时间的众数及第40百分位数分别是( )A. 8,8.5B. 8,8C. 9,8D. 8,93.已知椭圆C :x 2a 2+y 2b 2=1(a >b >0),过点(−a,0)且倾斜角为34π的光线,经直线y =−b 反射后过C 的右焦点,则C 的离心率为( )A. 35B. 23C. 34D. 454.定义:如果函数y =f(x)在区间[a,b]上存在x 1,x 2(a <x 1<x 2<b),满足f′(x 1)=f(b)−f(a)b−a,f′(x 2)=f(b)−f(a)b−a,则称函数y =f(x)是区间[a,b]上的一个双中值函数,已知函数f(x)=x 3−65x 2是区间[0,t]上的双中值函数,则实数t 的取值范围是( )A. (35,65)B. (25,65)C. (25,35)D. (1,65)二、填空题:本题共12小题,共54分。

5.不等式x−2x +1≤0的解集是______.6.已知复数z =1+i(i 是虚数单位),则|1−iz|= ______.7.已知x >0,y >0,xy =1,则1x +2y 的最小值为______.8.若α∈(π2,π),cos (π−α)=35,则tanα= ______.9.若A(1,2)、B(−3,4)、C(5,m)三点不能构成三角形,则m = ______.10.某市高考新政规定每位学生在物理、化学、生物、历史、政治、地理中选择三门作为等级考试科目,则甲、乙两位学生等级考试科目恰有一门相同的不同选择共有______种.(用数字作答)11.已知{a n }为等差数列,其前n 项和为S n .若a 1=1,a 3=5,S n =64,则n =______.12.过直线y =x 上一点作圆(x−5)2+(y−1)2=2的两条切线l 1,l 2,当l 1,l 2关于直线y =x 对称时,l 1,l 2的夹角的大小为______.13.已知函数f(x)=lnx−ax−2在区间(1,2)上不单调,则实数a 的取值范围为______.14.如图,正六边形的边长为2,圆O 的圆心为正六边形的中心,半径为1,若点M 在正六边形的边上运动,动点A 、B 在圆O 上运动且关于圆心O 对称,则MA ⋅MB 的取值范围是______.15.已知(1+2024x )50+(2024−x )50=a 0+a 1x +a 2x 2+⋯+a 50x 50,其中a 0,a 1,a 2,…a 50∈R ,若a k <0,k ∈{0,1,2,…,50},则实数k 的最大值为______.16.已知数列{a n }满足:对于任意正整数n 有a n ∈(0,π2),且a 1=π4,f(a n +1)=f′(a n ),其中f(x)=tanx ,若b n =(−1)ntana n +1−tana n ,数列{b n }的前n 项和为T n ,则T 440= ______.三、解答题:本题共5小题,共78分。

同济大学课程考核试卷B卷试题及答案

同济大学课程考核试卷B卷试题及答案

同济大学课程考核试卷(B卷)答案2013 — 2014 学年第二学期命题教师签名:审核教师签名:课号:课名:建筑混凝土结构设计考试(√)考查()此卷选为:期中考试( )、期终考试(√)、重考( )试卷,开卷()、闭卷(√)年级专业学号姓名得分一、填空题(共15题,每题1分,共15分):1.将同一结构在各种荷载组合作用下的内力图(弯矩图或剪力图)叠画在同一张图上,其外包线所形成的图形称为包络图。

它反映出各截面可能产生的最大内力值,是设计时选择截面和布置钢筋的依据。

2.钢筋混凝土板在理论上存在多种可能的塑性铰线形式,但对于某特定的荷载形式,只有相应于极限荷载为最小的塑性铰线形式才是真实的。

3.悬挑的雨篷板构件需要进行抗倾覆验算。

理论上,需要保证抗倾覆力矩大于(填“大于”或“小于”)倾覆力矩。

在实际设计时,为保证一定的安全储备,要求抗倾覆力矩与倾覆力矩之比大于或等于 1.5 (填某具体数值)4.按弹性理论方法计算钢筋混凝土连续梁板的内力时,如果各跨内荷载一样且跨度相等,但跨数多于5跨,则在实际计算中近似按5跨计算(填“近似按5跨计算”或“按实际跨数计算”两者之一)。

在配筋计算时,中间各跨的跨中内力可取与第3跨内力相同(填“可取与第3跨内力相同”或“按实际跨跨中内力”两者之一)5.单层厂房的排架柱为预制构件,应进行吊装和运输验算。

6.抗风柱承受由山墙传来的水平风荷载,抗风柱顶一般视为不动铰,柱底视为固定支座。

当有墙传来竖向荷载时,抗风柱按偏心受压构件设计,否则按受弯构件设计7.纵向定位轴线一般宜与边柱外缘和墻内缘相重合,当不重合时,纵向定位轴线与边柱外缘之间的距离称为联系尺寸。

8.吊车梁的内力有弯矩、剪力、扭矩。

9.框架结构布置中,为利于结构受力,平面上,框架梁宜拉通;竖向对直,框架柱宜上下对中,梁柱轴线宜在同一竖向平面内。

10、公式中,K的物理意义是梁柱线刚度比。

11.采用反弯点法计算内力时,假定反弯点的位置底层柱在距基础顶面2/3处,其余各层在柱中点。

2012年综合科期中测试卷

2012年综合科期中测试卷

高良中心学校2012至2013学年上学期小学五年级期中统测 综合试卷亲爱的同学们,祝贺你们圆满完成了小学五年级《科学》和《品德与社会》半个学期的学习,相信你们一定能做好下面的综合测试题,让我们一起去享受收获的快了吧! 第一部分 科学(共50分) 一、选择题。

(请把正确答案的字母选填在括号里。

每题1分,共10分) 1、新月指的是天上( )。

A.出现月牙 B.出现满月 C.不出现月亮 2、凸透镜的特点是( )。

A.中间厚、边缘薄 B.边缘厚、中间薄 C.上下一样厚薄 3、小明要制作一个放大镜,他应该选用( )。

A. 凸面镜 B.凹透镜 C. 凸透镜 4、下列不属于自然光源的是( )。

A.灯光 B.阳光 C.萤火 D.闪电 5、下列属于人造光源的是( )。

A.极光 B. 孔明灯 C.月光 D.闪电 6、太阳投影(影子)的变化规律是( )。

A.由短变长 B.由长变短 C.由长变短再变长 D.长短不会变化 7、登山运动员戴一个特制墨镜的原因是( )。

A.高山空气稀薄,阳光辐射能力强 B.白雪反光能力强,刺眼睛 C.高山上紫外线,红外线较强,容易灼伤眼睛 8、玩手掌日晷游戏时,要注意面向( )。

A.正东方 B.正西方 C.正南方 D.正北方 9、春夏秋冬四季中白天的时间( )。

A.一样长 B.夏季长 C.冬季长 D.春秋季长 10、发光的物体叫做光源,下列属于光源的是( )。

A.地球 B.月亮 C.太阳和星星 二、判断题。

(正确的在括号里打“√”,错误的在括号里打“×”。

每题1分,共10分。

) 1、昼夜的变化是地球公转的结果。

( ) 2、光源可以分为自然光源和人造光源两种。

( ) 3、凹透镜可以做近视眼镜。

( ) 学校 班级 姓名-------------------------------- 装-------------------------------------------订------------------------------ ------------线--- ------------------------------4、凸透镜可以把眼前模糊的景象放大。

2012年秋季湖北省部分重点中学期中联考

2012年秋季湖北省部分重点中学期中联考

2012年秋季湖北省部分重点中学期中联考高二生物试卷命题学校:孝昌一中命题教师:饶春桥审题教师:齐平伟谈云钊考试时间:2012年11月14日上午10:20~11:50 试卷满分:90分第Ⅰ卷一.选择题(每小题只有一个正确答案,请将答案填涂在答题卡上,每小题2分,共40分)1.有关人体稳态的叙述中,正确的是A.稳态是机体通过消化、呼吸、循环、泌尿这四个系统的协调活动来维持的B.稳态是机体在神经系统的调节下,通过各器官、系统的协调活动来共同维持的C.在正常情况下,内环境的各项理化性质是保持不变的D.在正常情况下,内环境的各项理化性质经常处于变动之中,但保持在适宜的范围内2.下列属于人在寒冷环境中身体变化的是①皮肤血管收缩②皮肤的血流量增加③汗液分泌增多④汗液几乎不分泌⑤肾上腺素分泌增加⑥骨骼肌战栗⑦代谢活动增强A.①④⑤⑥⑦ B.①②③⑤⑥⑦ C.④⑤⑥⑦ D.①②③⑦3.下列各组化合物中,属于内环境成分的一组是○1血红蛋白○2葡萄糖○3二氧化碳○4钠离子○5血浆蛋白○6呼吸酶○7DNA聚合酶○8抗体○9甲状腺激素A.○1○2○3○5○8 B.○1○4○5○8○9 C.○2○5○6○7○9 D.○2○3○4○5○8○9 4.下列关于正常人体内环境稳态的调节,前者随后者变化的情况与下图走势不相符5.下列行为可以传染艾滋病的是○1与艾滋病人共同进餐○2静脉吸毒者共用一个针管○3在运动中撞到艾滋病患者○4与艾滋病患者拥抱○5与艾滋病患者共用纹身、文眉器械○6触摸艾滋病患者摸过的门把手○7输入含有HIV的血液○8叮咬过艾滋病患者的蚊蝇叮咬正常人○9与艾滋病患者共用马桶○10与艾滋病患者共用剃须刀A.○2○5○7○10 B. ○1○2○5○7○10 C. ○2○5○7○8○10 D. ○5○7○8○106.右图表示生命活动的调节机制,有关说法正确的是A. 若甲代表胰岛B细胞,则乙代表胰岛素B.若甲代表呼吸中枢,则乙代表呼吸肌C.若甲代表下丘脑,则乙可代表甲状腺激素D.若甲代表下丘脑,则乙代表垂体7. 接种卡介苗一段时间后,血液中就会出现结核杆菌抗体,这种抗体产生的结构单位和产生抗体的细胞及细胞器依次是(A).氨基酸、浆细胞、核糖体(B).葡萄糖、效应T 细胞、高尔基体 (C).氨基酸、效应T 细胞、高尔基体 (D).核苷酸、浆细胞、核糖体8.下列现象中,能体现生长素浓度对植物不同器官的影响有相同效果的是A .向地性和背地性B .向光性和顶端优势C .背地性和向光性D .向地性和向光性9.下列有关血糖平衡的调节叙述正确的是A.胰岛素分泌增加会促进胰高血糖素的分泌B.胰高血糖素分泌增加会促进胰岛素的分泌C.胰岛B 细胞同时受神经和促胰液素的双重支配D.胰高血糖素可促进肝糖原和肌糖原分解为血糖10. 下图表示人体和人体细胞内某些信息传递机制的模式图,图示中箭头表示信息传递方向。

2012同济大学建筑学基础355试题.doc

2012同济大学建筑学基础355试题.doc

2012同济大学硕士研究生入学考试试卷科目代码:355 科目名称:建筑学基础满分分值:150 一:填空题(每格1分,共40分)1.明代的()(填人物)作有我国古代最系统的园林艺术论著()。

历史2.我国古代木构建筑有两种最主要的结构体系,一种是(),另一种是()。

历史3.以维琴察为基地的文艺复兴晚期建筑师()于1570年出版了他的主要著作(),以他为代表的文艺复兴晚期亦被称作手法主义时期。

历史4.新艺术运动在奥地利被称为(),在德国被称()。

历史5.“任何建筑都拥有自身的批判性内核”这句话是()在他的著作(《》)的观点。

批评学6.意大利作家卡尔维诺的《看不见的城市》中所描述的“理想城市”是一种由()造成的城市。

批评学7.“建筑是凝固的音乐”这句话出自()国哲学家()的著作《艺术哲学》。

批评学8.请问美国城市设计学家凯文林奇(Kevin Lynch)在《城市意象》一书中归纳的构成城市意象物质形式的五个要素分别是()、()、()、()、()。

城市设计9.英国城市规划师E 霍华德(Ebenezer howard)于19世纪末,20世纪初提出的理想城市发展模式是()。

城市设计10.“光辉城市”是著名城市建筑学家()提出的现代城市发展模式。

城市设计11.1933年CIAM第四次大会提出的《雅典宪章》归纳了现代城市的四大活动类型,分别是()、()、()、()。

历史12.城市设计是一门介于()、()与()之间的一个专业领域。

城市设计13.高层建筑结构体系主要分为()、()和()等。

历史14.水落管内径不应小于(),一根水落管的最大汇水面积不宜大于()。

构造15.凡是有温差的地方,都会有()转移现象发生。

物理16.自然通风形成的原因,有风压和()组成。

物理17.我国建筑热工分区,除寒冷地区、夏热冬冷地区、温和地区外,还有()。

物理18.用来衡量光源色彩还原能力的指标是()。

物理19.光强是指光源向一定方向单位立体角内所发出的()。

上海市同济大学附属七一中学2024学年高三下学期期中联考物理试题(创新班)试题

上海市同济大学附属七一中学2024学年高三下学期期中联考物理试题(创新班)试题

上海市同济大学附属七一中学2024学年高三下学期期中联考物理试题(创新班)试题 注意事项1.考试结束后,请将本试卷和答题卡一并交回.2.答题前,请务必将自己的姓名、准考证号用0.5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置.3.请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符.4.作答选择题,必须用2B 铅笔将答题卡上对应选项的方框涂满、涂黑;如需改动,请用橡皮擦干净后,再选涂其他答案.作答非选择题,必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答,在其他位置作答一律无效.5.如需作图,须用2B 铅笔绘、写清楚,线条、符号等须加黑、加粗.一、单项选择题:本题共6小题,每小题4分,共24分。

在每小题给出的四个选项中,只有一项是符合题目要求的。

1、2012年12月26日,世界上最长的高铁京广线全线开通.如图所示,京广高铁从北京出发,经石家庄、郑州、武汉、长沙、衡阳,到达广州,途经北京、河北、河南、湖北、湖南、广东等6省市,全程2230公里,全程运行时间8小时.同学们根据上述材料,可以求出A .北京到广州的路程B .北京到广州的平均速度C .北京到广州的加速度D .北京到广州的位移2、将一定值电阻分别接到如图1和图2所示的两种交流电源上,在一个周期内该电阻产生的焦耳热分别为1Q 和2Q ,则12Q Q :等于( )A .21∶B .12∶C 2∶D .2∶3、光滑水平面上放有一上表面光滑、倾角为α的斜面A ,斜面质量为M ,底边长为 L ,如图所示。

将一质量为m 的可视为质点的滑块B 从斜面的顶端由静止释放,滑块B 经过时间t 刚好滑到斜面底端。

此过程中斜面对滑块的支持力大小为N F ,则下列说法中正确的是( )A .cos αN F mg =B .滑块下滑过程中支持力对B 的冲量大小为cos αN F tC .滑块到达斜面底端时的动能为tan αmgLD .此过程中斜面向左滑动的距离为m L M m+ 4、某次空降演练中,跳伞运动员从飞机上跳下,10s 后打开降落伞,并始终保持竖直下落,在0~14 s 内其下落速度随时间变化的v —t 图像如图所示,则( )A .跳伞运动员在0~10s 内下落的高度为5v 2B .跳伞运动员(含降落伞)在0~10s 内所受的阻力越来越大C .10s 时跳伞运动员的速度方向改变,加速度方向保持不变D .10~14s 内,跳伞运动员(含降落伞)所受合力逐渐增大5、如图所示,一轻弹簣竖直固定在地面上,一个小球从弹簧正上方某位置由静止释放,则小球从释放到运动至最低点的过程中(弹簧始终处于弹性限度范围内),动能k E 随下降高度h 的变化规律正确的是( )A.B.C.D.6、某同学按如图1所示连接电路,利用电流传感器研究电容器的放电过程。

上海市同济大学二附中2023-2024学年高二上学期期中语文试题

上海市同济大学二附中2023-2024学年高二上学期期中语文试题

上海市同济大学二附中2023-2024学年高二上学期期中语文试题一、混合默写1.按要求填空。

(1),多于机上之工女。

(杜牧《阿房宫赋》)(2)自天子以至于庶人,。

(《大学之道》)(3)在学习和生活中,我们应该时刻借鉴别人的长处,补己之短;以别人的过失来警戒自己。

正如《〈论语〉十二章》中所说:“,。

”二、语言表达2.按要求选择。

(1)撰写演讲稿引用诗文名句可以增加表现力。

下面引用最恰当的一项是()A.“以英雄为榜样,逐梦前行”的演讲稿引用孟浩然诗句“人事有代谢,往来成古今”。

B.“学习拓荒牛精神,刻苦学习”的演讲稿引用“横眉冷对千夫指,俯首甘为孺子牛”。

C.魏老师讲古典诗词新见迭出,他在介绍经验的演讲稿中说自己是“为赋新词强说愁”。

D.王勉同学在介绍江南故乡美景的演讲词中引用“千里莺啼绿映红,水村山郭酒旗风”。

(2)下列选项中用语得体的一句是()A.经常光顾老师办公室问问题,是成绩优秀学生的一大共同特点。

B.既然小茗同学你如此虚心探讨问题的本源,我也就不吝赐教了。

C.尽管只是绵薄之力,但他费了很大的劲,我们应向他表示感谢。

D.拙作《老子补正》新成,惶恐以赠,尚祈雅正,不吝赐教。

三、论述类文本阅读阅读下文,完成下面小题。

传统即创造:不只是一种艺术观①有“日本的毕加索”之称的冈本太郎,于1956年出版的《传统即创造》,依然大有可借鉴之处。

他谈的是艺术,实则可以扩展至文化、生活中的各个方面。

②冈本太郎在此书序言里说:“人世间没有比似是而非更‘非’的东西,传统主义对传统的误读同样无人能及。

”这句话一定会引起很多共鸣吧?我们已然看到太多太多对传统文化的似是而非的误读。

这似乎是一种常态。

③传统之所以为传统,不仅在于它与世世代代的男男女女的生活密切相关,更在于它与我们的当下的生活的相关性。

一方面,只有结合在当下的生活之中,才是活生生的传统。

另一方面,“决心从这里出发”,冈本太郎说,“这才是对待传统的正确态度”。

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同济大学继续教育学院2012学年秋季学期期终考试专升本大学英语(二)课程考试题(复习卷)学号Part I. Vocabulary & Structure (30%)Directions: Choose the ONE answer that best completes the sentence.1.As the semester is drawing to an end, the student union is calling on all thestudents to ____ the temptation to cheat on exams.A. refuseB. rejectC. resistD. resolve2.You don’t agree with me on this matter, I know, but ____ you’ll see I am inthe right.A. at timesB. in timeC. at one timeD. all the time3.As some of the rules concerning foreign trade ran contrary to the principlesof the WTO, the government decided to ____ them as soon as possible.A. abolishB. accomplishC. distinguishD. establish4.It is impossible for me to sing a song these days, for my voice is ____.A. going ofB. going toC. going offD. going away5.The old man regained consciousness and found himself lying in a roomwhich had nothing but ____ walls.A. blankB. emptyC. vacantD. bare6.The typical symptom of the epidemic SARS is ____ high fever and acutecough.A. persistentB. resistantC. subsequentD. perseverant7.The Christmas dinner includes poultry for the main course, salad, bread,and vegetables, and ____ a variety of desserts, for example, pies, puddings and ice-cream.A. involvesB. featuresC. characterizesD. protrudes8.____ the events of last week, I think, we could have handled things moreefficiently.A. Falling back onB. Looking back onC. Getting back onD. Going back on9. A suicide bomb exploded in a Jewish ____, killing dozens of people.A. siteB. plantationC. terminalD.settlement10.In the last few years, the Internet and the World Wide Web have become____ words; almost everyone has heard of them.A. familyB. homeC. houseD. household11.It can said without exaggeration that no part of the United States is noteasily accessible by car, by train, or by air, and ____ by all the three of them.A. more often thanB. more often than notC. no more often thanD. less often than12.While freshmen are considered part of the academic elite(精英), some ofthem appear to lack common sense ____ following traffic regulations.A. coming toB. when coming toC. when it comes toD. when they come to13.Dangerous animals such as bears and wolves can be ____ by lighting a firewhen you go camping in a virgin forest.A. kept in handB. kept at bayC. kept in touchD. kept in mind14.As she matured as an artist, she ____ realize that “all artists are a product oftheir culture”.A. came toB. kept toC. took toD. went to15.He always uses the same ____ of lies to cheat strangers.A. numberB. flockC. groupD. web16.Many European countries ____ all alliance(同盟) against Hitler’s militaryinvasion.A. passed forB. forgedC. compelledD. authorized17.Because of the mad cow disease, the European Union ____ a worldwideban on British beef and beef product exports.A. challengedB. chargedC. forgedD. imposed18.The ancient tribes there are supposed ____ from the mainland to the island.A. to moveB. to be movingC. to have movedD. to have been moving19.Bicycle riders want the city government to set aside special lanes(行车道)for bicycles on some of the main streets, but though they have got some supporters, ____ likes the idea.A. everyoneB. not everyoneC. no oneD. someone20.On Children’s Day, our nieces and nephews were taken to the departmentstore and then ____ to pick their favorite toys.A. set outB. let aloneC. brushed asideD. turned loose21. Our house is about a mile from the station and there are not many houses ______.A. in betweenB. among themC. far apartD. from each other22. The destruction of these treasures was a loss for mankind that no amount of money could _________.A. stand up toB. put up withC. come up withD. make up for23. Some fish have a greater ________ for acid water than others.A. toleranceB. resistanceC. dependenceD. persistence24. Many scientists have been _________ the goal of a practical and economical way to use sunlight to split water molecules.A. pursuingB. chasingC. reachingD. winning25. I have no formal clothes for the occasion. Perhaps I can get _________ in a dark suit?A. throughB. byC. atD. off26. The money I get from teaching the piano is a useful _________ to my ordinary income.A. implementB. complementC. supplementD. compliment27. The _________ consists of Mr. and Mrs. Smith, their son and two daughters.A. houseB. householdC. homeD. housing28. He never talks to me _________ to ask for something.A. besidesB. aside fromC. apart fromD. other than29. I _________ my grant by working in the evenings.A. complimentB. complementC. supplementD. implement30._________ my point I have done a comparative study.A. IllustratingB. To illustrateC. Having illustratedD. Being illustratedPart II. Reading Comprehension (30%)Passage One:When John and Victoria Falls arrived in New York City for one-year stay, they did not bring very many things with them. They had planned either to live in a furnished apartment or to buy used furniture. But they soon learned about a new system that more and more people are using. The renting of home furnishings (bed, tables, dishes, and so on) has become one of America’s fastest growing businesses.What kinds of people rent their home furnishings instead of buying them? People who are international business or government officials, foreign students, airline workers, young married couples --- people whose job or business may force them to move frequently from one city to another. They save a lot of trouble and the cost of moving their furniture each time. They simply rent new furniture when they reach their new homes. Young people with little money do not want to buy cheap furniture that they may soon dislike. They prefer to wait until they have enough money to buy furniture they really like. Meanwhile, they find they can rent better quality furniture than they could afford to buy.One family, who now have a large, beautiful home of their own, liked their rented furniture so much that they decided to keep renting it instead of buying new things. But usually people don’t like to tell others about it. The idea of renting home furnishings is still quite new, and they are not sure what their neighbors might think.1.Which of the following has become one of America’s fastest growingbusinesses?A. Selling home furnishings.B. Renting furnished apartments.C. Selling used furniture.D. Renting home furnishings.2.Why do some people prefer to rent furniture?A.Because the furniture they get in this way is new.B.Because it saves them a lot of money.C.Because it saves them much trouble and money.D.Because they can always get better quality furniture in this way.3.What can you infer from the passage?A.The idea of renting furniture is not acceptable.B.Renting furniture is not popular in the couple’s home tow n.C.Only those who don’t have enough money rent furniture.D.People usually grow to like the furniture they have rented.4.Which of the following can best serve as the title of the passage?A. rent or Buy?B. A New Way of Getting Home FurnishingsC. Furnished ApartmentsD. A New Idea5.Young people liked renting home furniture in that _______.A. They have less money.B. They don’t want to buy old furniture.C. The new furniture is of good quality.D. They don’t have much money and don’t want to buy the cheap furniture.Passage Two:For the most part, rapid economic development has been a boon. But there is a down side to development –health problems such as overweight are all becoming more prevalent, as more people take taxis to work instead of riding their bicycles, and other labor-saving devices become more popular.An increasing fast pace of life makes it difficult for people to spend time working out or playing sports. “I know exercise is good for your health,” a young lady said. “But afte r a busy work week, the only thing I want to do is watch some TV and go to sleep.” That attitude may explain the results of a recent nationwide study, which suggested 15 percent of urban adults I China are overweight, a large number of people over the age of 40 suffer from high blood pressure and cardiac ailments.Local researchers found that 31.2 percent of elderly respondents were getting enough exercise, but less than 9 percent of youngsters and the middle-aged got an adequate amount of physical activity.Elderly people understand the importance of protecting their health. The young people, however, are busy working and use this as an excuse to avoid exercise. In fact, physical exercise doesn’t require much time, money or a special gymnasium. People can make use of any time and any place at their convenience to take part in sports. Walking quickly, cycling, climbing the stairs and dancing are all helpful methods to enhance one’s health.The benefits of adding a little more activity to your lift are priceless. “There is no need to be an athlete, however,” a local doctor said. People should walk for 30 minutes a day and take part in other physical activity three to five times a week. He warns, however, that people in poor physical shape should start slowly, and build up over time.China has taken the need for more exercise to heart, with the government running several activities last Sunday, which was the designated World Health Day. Pamphlets and posters based on the theme“Move for Health” wer e distributed nationwide, encouraging people to develop a positive and healthy lifestyle.6.Rapid economic development has resulted in all the following except ____.A.an increasing number of taxi passengersB.the wide use of labor-saving devicesC.an increasingly fast pace of lifeD.people’s awareness of the importance of exercise7.Some people are getting overweight because ____.A.they are too busy to have any time for exerciseB.they are ignorant of the benefits of exerciseC.they are too weak to participate in physical activityD.they are short of money to pay for different exercises8.According to the passage, who need regular daily exercise most?A.People taking taxis to work.B.Urban adults with full-time jobs.C.Elderly people suffering from high blood pressure.D.Youngsters dreaming of becoming professional athletes.9.What is the main idea of the last paragraph but one?A.Many people are still unable to afford the cost of physical exercises.B.Nobody should take part in physical activity in order to be an athlete.C.Moderate physical exercise is usually enough for ordinary people.D.Old or sick people should only take part in physical exercises of theslowest type.10.By referring to rapid economic development as “a boon” at the beginning ofthe passage, the author means that ____.A.it has benefited the general public greatlyB.it has done harm to people’s health nationwideC.it is going faster than anyone could have imaginedD.it has helped to establish a positive and health lifestyle of the publicPassage Three:Every human being, no matter what he is doing, gives off body heat. The usual problem is how to dispose of it. But the designers of the Johnstown campus of the University of Pittsburgh set themselves the opposite problem –how to collect body heat. They have designed a collection system which utilizes not only body heat, but the heat given off by such objects as light bulbs and refrigerators as well. The system works so well that no conventional fuel is needed to make the campus’s six buildings comfortable.Some parts of most modern buildings –theaters and offices as well as classrooms –are more than amply heated by people and lights and sometimes must be air-conditioned even in winter. The technique of saving heat and redistributing it is called “heat recovery”. A few modern build ings recover heat, but the University’s system is the first to recover heat from some buildings andreuse it in others.Along the way, Pitt has learned a great deal about some of its heat producers. The harder a student studies, the more heat his body gives off. Male students emit more heat than female students, and the larger a student, the more heat he produces. It is tempting to conclude that the hottest prospect for the Johnstown campus would be a hard-working, overweight male genius.11.Until recently, body heat has caused problems because it_____.A. was difficult to collectB. came in variety of formsC. was difficult to get rid of itD. tended to be absorbed by physical objects12.Which of the following is true of the heating system of the Johnstowncampus?A. The heat is supplied by human bodiesB. The heat is supplied by both human bodies and otherheat-emitting objectsC. The heat is supplied by both human bodies and conventional fuelD. The heat is supplied by human bodies, other heat-emitting objects, and conventional fuel13.At the Johnstown campus, how many of the buildings are heated entirely bythe heat collection system?A. NoneB. TwoC. FourD. Six14.According to the passage, which of the following would produce theLEAST amount of heat?A. A fat female who studies hardB. A thin female who does not studyC. A fat male who does not studyD. A thin male who studies hard15.In the last paragraph, the “hottest prospect” means the____.A. most intelligent studentB. most desirable studentC. most diligent studentD. most learned studentPassage Four:The resources of the library can be helpful even when we are doing something very informal, such as trying to devise a better way to measure attitudes toward music or looking for a better way to teach mathematics. The library can be equally helpful when we are doing something very formal, such as writing a dissertation (学位论文) or preparing an article for publication in a professional journal. In either case, our goal should be to use the library as a useful tool to help us understand and solve our problem.The following sections of this chapter will describe specific resources available in many libraries. In some cases you may already be aware of a resource and may use it frequently and successfully. In other cases you may be completely unfamiliar with a resource. Your goal should be to become aware of what is available and to know how to use each of these resources to help you solve the problem they are designed to solve.When educators have a piece of information that they want to share with their colleagues, they often make this information available in professional journals or at professional meetings. It would often be useful to have access to such information, and this chapter will describe the special services that enable us to locate such information.16.The library resources can be helpful when we ______.A. want to find a better way to measure attitudes toward musicB. are preparing a paper for a professional journalC. are writing a dissertationD. All of the above17.Readers’ familiarity with different resources ______.A. is more or less the sameB. varies slightlyC. differs greatlyD. should not be different18.The author believes that ______.A. library resources should be used frequently and completelyB. library resources cannot be made good use of if they are not available tousC. one is supposed to be aware of the library resources that are usually notavailableD. one is supposed to have good knowledge and make good use of libraryresources19.When educators wish to share some information with their colleagues, theyoften ______.A. publish it in a professional journalB. organize professional meetingsC. get access to it in the libraryD. make use of some library services20.The chapter in question mainly ______.A. deals with the ways of dissertation writingB. presents information on publishing papers in professional journalsC. introduces some library servicesD. describes some professional meetingsPart III. Cloze (15%)One day when Jamie came home after school, his mother had on her worry face. He knew she was thinking of 1 “It’s bad out there. Black clouds are coming from the sea,” Jamie said. “Yes. I’m thinking of those fishing boats at sea,” she said.At that moment 2. went out. Jamie and his mother were in the dark.“The coastline will be in the dark,” Jamie’s mother said. She got more worried. 3 always come in threes. I broke my best glasses this morning, and my sister has the cold.“Now, don’t worry, mum. They’re right.” They’re 4 to come through this all right.But Jamie really worried about those fishing boats himself. The fishing boats would 5 the cove in the dark.Jamie took flares and rushed into the wind. There was a cliff by the sea. He started to climb. He 6 himself up hand over hand. At last he reached the top.He 7 three times. On the fourth try he fired off one of the flares. It rose and cut into the black sky in bright light. Then he saw an answering flare up at sea. Jamie fired off two more. He saw another answering flare up, then another, then another. The answering flares from the fishing boats showed they 8 the entrance to the cove but then changed course and were 9 sailing into the cove. They were almost home. Jamie helped 10 the fishermen of the village.A. the windB. the cloudsC. the rainD. the weather1. A. Jamie B. his motherC. the fireD. the lights2. A. Messages B. AccidentsC. TroublesD. Questions3. A. sure B. luckyC. safeD. ready4. A. lose B. missC. leaveD. forget5. A. pushed B. pulledC. carriedD. climbed6. A. made B. triedC. failedD. finished7. A. were at B. had foundC. had passed byD. were going into8. A. now B. thenC. onceD. again9. A. answer B. saveC. find outD. look forPart IV. Translation (25%)1.至于这本杂志,它刊载世界各地许多报刊杂志上文章的摘要。

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