东北大学试题
东北大学“采矿工程”《岩石力学》23秋期末试题库含答案
东北大学“采矿工程”《岩石力学》23秋期末试题库含答案第1卷一.综合考核(共20题)1.地应力是岩体的一种基本属性，又是岩体变形破坏的动力因素，以下哪种说法是不对的()A.岩体的本构关系及参数受到地应力的影响B.岩体的承载能力受到初始应力的影响C.岩体的破坏机制不受地应力的影响D.地应力控制岩体中应力传播方式和力学介质模型2.岩石与岩体的关系是()。
A.岩石就是岩体B.岩体是由岩石和结构面组成的C.岩体代表的范围大于岩石D.岩石是岩体的主要组成部分3.完整结构岩体多半是由于碎裂结构岩体中结构面被后生作用愈合而成，这些后生作用包括()。
A.压力愈合B.结晶愈合C.胶结愈合D.错动愈合4.如果围岩具有很好的自稳能力，其变形破坏形式主要有()。
A.岩爆B.脆性开裂C.块体滑移D.泥化5.6.在平面应力问题中下列哪个是正确的()A.σz=0B.τxy=0C.εx=0D.τzy=07.剪胀(或扩容)表示()。
A.岩石体积不断减少的现象B.裂隙逐渐闭合的一种现象C.裂隙逐渐涨开的一种现象D.岩石的体积随压应力的增大逐渐增大的现象8.岩质边坡的破坏类型从形态上来看可分为()。
A.岩崩和岩滑B.平面滑动和圆弧滑动C.圆弧滑动和倾倒破坏D.倾倒破坏和楔形滑动9.岩石是()的集合体，是天然地质作用的产物。
A.晶体B.矿物C.石英D.长石10.关于锚杆支护作用机理，以下哪种表达是正确的()。
A.提高围岩的c、φ值，改善围岩周边应力状态B.通过锚杆杆体的抗拉刚度和强度作用，达到抑制位移及破裂目的C.锚杆的作用可以理解为从整体上提高了岩体力学中E、v指标D.以上说法都正确11.下列属于表面力的有()。
A.重力B.流体压力C.剪应力D.拉力12.影响岩体质量的主要因素为()。
A、岩石类型、埋深B、岩石类型、含水量、温度C、岩体的完整性和岩石的强度D、岩体的完整性、岩石强度、裂隙密度、埋深13.岩体的力学性质受环境围压影响显著，随着围压的不断增大，岩体结构面的力学效应将()。
东北大学“冶金工程”《金属学与热处理基础》23秋期末试题库含答案
东北大学“冶金工程”《金属学与热处理基础》23秋期末试题库含答案第1卷一.综合考核(共20题)1.Cu-Ni合金在室温下是单相固溶体，因单相固溶体的硬度随溶质原子的溶入量的增加而提高，所以含Ni90%的合金的硬度比含Ni50%的高。
()A、错误B、正确2.在实际生产条件下，金属凝固时的过冷度都很小(A.正确B.错误3.珠光体的片层间距主要取决于其形成温度。
在连续冷却条件下，冷却速度越大，珠光体形成温度越低，即过冷度越大，则片层间距越小。
()A、错误B、正确4.滑移变形的同时伴随有晶体的转动，因此，随变形度的增加，不仅晶格位向要发生变化，而且晶格类型也要发生变化。
()A、错误B、正确5.若钢中加入合金元素能使C曲线左移，则将使淬透性()。
A、提高B、降低C、不改变D、对小试样提高，对大试样则降低6.金属结晶过程中()。
A、临界晶核半径越大，形核越易B、临界晶核形成功越大，形核越易C、过冷度越大，形核越易D、均质形核比非均质形核容易7.钢中马氏体是碳在α-Fe中的过饱和固溶体，低碳马氏体具有()点阵。
A.fccB.bccC.bct8.变形金属加热时发生的再结晶过程是一个新晶粒代替旧晶粒的过程，这种新晶粒的晶型是()。
A、与变形前的金属相同B、与变形后的金属相同C、形成新的晶型9.10.金属化合物的特点是()。
A、高塑性B、高韧性C、高硬度D、高强度11.共析成分的铁碳合金平衡结晶至室温时，其组织成物为()。
A、PB、P+FC、P+Fe3C12.反应式L+a←→b是表示()。
A、偏晶转变B、包晶转变C、熔晶转变13.经冷塑性变形后金属的强度()。
A.下降B.不变C.提高14.体心立方晶格金属与面心立方晶格金属在塑性上的差别，主要是由于两者的()。
A、滑移系数不同B、滑移方向数不同C、滑移面数不同D、滑移面和滑移方向的指数不同15.16.流线是热变形工件的组织特征，依此可判断材料的加工方式。
()A.正确B.错误17.在铁碳合金中，只有共析成分点的合金在结晶时才能发生共析反应，形成共析组织。
东北大学健康教育试题
4008 传染病在人群中流行必须具备的三个基本条件是：（ ） A
A. 传染源、传播途径、易感人群
B. 微生物、媒介、宿主
C. 病原体、环境、宿主
D. 病原体、人体和它们所处的环境
4009 传染病的基本特征是：（ ）D
A. 有传染性、流行性、病原体
B. 有传染性、流行性、免疫性
D. 搞好环境卫生和个人卫生
4018 HBsAg ( + ) , HBeAg ( + ）说明此病人： D DDDD
A. 无传染性
B. 具有免疫力
C. 病情比较稳定
D. 具有传染性
4019 戊型肝炎的主要传播途径是：（ ） D
A. 飞沫传播
B. 唾液传播
C. 切忌用手挤压患处
D. 禁用刺激性化妆品
5008 足癣俗称脚气是由哪种病原微生物引起的。（ ） C
A. 细菌
B. 病毒
C. 真菌
D. 衣原体
5009 人血液中红细胞的机能主要是（ ） B
A. 吞噬作用
B. 输送O2和CO2
C. 止血功能
B. 饭前便后要洗手
C. 增加体质，提高抗病能力
D. 消灭蚊蝇蟑螂
E. 预防性服药，避免生病
4507 乙型病毒性肝炎的传播途径有：（ ） ABCD
A. 输血
B. 共用牙刷与剃刀
C. 性接触
D. 母婴传播
E. 共同餐具
4508 甲型病毒性肝炎的典型临床表现为：（ ） ABCDE
A. 急性肝炎
B. 胃穿孔
C. 胃出血
D. 急性胆囊炎
5004 不属于急性肾小球肾炎典型症状的是（ ） D
东北大学大学英语统考试题答案
东北大学大学英语（统考）在线练习题14(14(客观题客观题客观题) )1 ABDBC2 CCABC 3CDCBC 4 DACBA一、阅读理解（共 4 道试题，共40 分。
）V1. People often say that theEnglishman’s home is his castle. They mean that the home is very important and personal. Most people in Britain live in houses rather than flats, and many people own their homes. This means that they can make them personal, and change them in any way they like. Mosthouses have a garden, even if it is a small one, and the garden is usually loved. The house and the garden are the private space of a person. In a crowded city a person knows that he or she has a private space which is only for himself or herself and for invited friends.People usually like to mark their space. If you are on the beach you may have spread your towels around you; in the rain you may have put your coat or small bag on the seat beside you; in a library you may spread your books around you. Once I was traveling on a train to London. I was on a section for four people and there was a table between us. The man opposite to me had his briefcase on the table. There was no space on my side of the table at all. I was unhappy. I thought he thought that he owned the whole table. I had been reading a book about nonverbal communication so I took various papers out of my bag and put them on his case! When I did this he suddenly became angry and his eyes nearly popped out of his head. I had taken up his space! A few minutes later I took my papers off in order to read them. He immediately moved his case to his side of the table.1). What does the first sentence in Paragraph 1 mean?A. The home matters greatly to Englishmen.B. The castle is more important than the home.C. The home is more important than the castle.D. Englishmen usually live in homes instead of castles.满分：满分：2 2分2). Which of the following is NOT the reason for most British to live in homes?A. They can make changes in houses in which they live.B. They love houses more than gardens.C. They can own private space like the house and the garden.D. They can keep the private space to themselves and friends.满分：满分：2 2 分3). According to Paragraph 2, if you spread your books around you in a library, it means _______ .A. you want to spread your towels around you furtherB. you want to put your coat on the tableC. you can find no space for your books on the seatD. you want to tell others the space belongs to you满分：满分：2 2 分4). How did the man opposite to the writer show he owned the whole table?A. He sat in a section for four people.B. He placed his briefcase on the tableC. He was traveling on a train to London.D. He was reading a book.满分：满分：2 2 分5). The writer tried to get back his space by ______.A. moving the case off the tableB. taking all his papers outC. taking up the space of the man oppositeD. showing the books concerned to the man满分：满分：2 2 分2. Although the United States covers so much land and the land produces far more food than the present population needs, its people are by now almost entirely and urban society. Less than a tenth of the people are engaged in agriculture and forestry (林业) , and most of the rest live in or around towns, small and large. Here the traditional picture is changing: every small town may still be very like other small towns, and the typical small town may represent a widely accepted view of the country, but most Americans do not live in small towns any more. Half the population now lives in some thirty metropolitanareas (large cities with their suburbs) of more than a million people each ---- a larger proportion than in Germany or England, let alone France. The statistics(统计) of urban and rural population should be treated with caution because so many people who live in areas classified as rural travel by car to work in anearby town each day. As the rush to live out of town continues, rural areas within reach of towns are gradually filled with houses, so that it is hard to say at what moment a piece of country becomes a suburb. But most and more thetypical American lives in a metropolitan rather than a small town environment.1). If now America If now America has 250 has 250 has 250 million million million people, how many people, how many people, how many of them are engaged of them are engaged in agriculture and forestry?A. About 25 million.B. More than 25 million.C. Less than 25 million.D. Less than 225 million.满分：满分：2 2 分2). Which of the following four countries has the smallest proportion of people living in metropolitan areas?A. United States.B. Germany.C. France.D. England.满分：满分：2 2 分3). What’s the meaning of the word “metropolitan” in the middle of the passage?A. Of a large city with its suburbs.B. Of small and large towns.C. Of urban areas.D. Of rural areas.满分：满分：2 2 分4). According to the passage, what can we learn about small towns in the United States?A. Most small towns become gradually crowded.B. Small towns are still similar to each other.C. As the traditional picture is changing, towns are different.D. Small towns are turning into large cities.满分：满分：2 2 分5). Why is it hard to say when a piece of country becomes a suburb?A. Because they are the same.B. Because the rush takes place too quickly.C. Because the process is gradual.D. Because more and more Americans live in metropolitan areas.满分：满分：2 2 分3. Albert Einstein had a great effect on science and history, greater than what only a few other men have achieved. An American university president once commented that Einstein had created a new outlook, a new view of the universe. It may be some time before the average mind understands fully the identity of time and space and so on---but even ordinary men understand now that the universe is something larger than ever before.By 1994 the young Einstein had gained world fame. He accepted the offer to become a professor at the Prussian Academy of Science in Berlin. He had few duties, little teaching and unlimited opportunities for study, but soon his peace and quiet were broken by the First World War. Einstein hated violence. Themisery of war affected him deeply, and he sat unhappily in his office doing little. He lost interest in his research. Only when peace came in 1918 was he able to get back to work.In the years following World War I honors were increasingly heaped on him. He became the head of the Kaiser Whihem Institute of Theoretical Physics. In 1921he won the Nobel Prize, and he was honored in Germany until the rise of Nazism when he was driven from Germany because he was a Jew.1). The main idea of Paragraph 1 is ______.A. the time when people know EinsteinB. the feeling of an American college presidentC. the change in human thought produced by EinsteinD. the difficulty facing teachers in understanding Einstein’s thought满分：满分：2 2 分2). According to the American university president, ______.A. everyone understands Einstein’s theory todayB. Einstein achieved more than any other scientists in historyC. the theory of relativity can be quickly learned by everyoneD. our ideas about the universe are different today because of Einstein满分：满分：2 2 分3). According to Paragraph 2, Albert Einstein _______ .A. was a famous chemistB. headed a research instituteC. was famous in the worldD. enjoyed reading about war满分：满分：2 2 分4). According to the passage, Einstein did his greatest work _______ .A. during World War IB. when he was youngC. when Nazism roseD. between 1906 and 1915满分：满分：2 2 分5). It may be concluded that ______.A. Albert Einstein was forced to serve in the German armyB. Albert Einstein had no other interests besides scienceC. Germans usually have a high respect for scienceD. his reputation was ruined because of his work during World War I满分：满分：2 2 分4. If you have been joining chat room conversations, or trading e-mail with net pals, you have become one of the millions who write in a special, short form of English.Throughout the world, every night children and their elders are talking online---many of them are talking at the same time.It’s fast: trying talking to six people once. It’s convenient: three or four words per exchange. It takes cleverness, concentration and quick fingers.And it requires very simple language. There is neither time nor space forexplanations. Why waste precious time telling six friends you have to leave fora moment to take care of your little brother when BRB (=be right back) will do? Want to enter a conversation? Just type PMFJI(=pardon me for jumping in). I nterested in whom you’re talking to? Type A/S/L, the common request to know your pal’s age, sex and location. You may get 15/M/NY as a reply from your pal.If something makes you laugh, say you’re OFT (=on the floor), or LOL (=laughing out loud), or joining the two into ROTEL (=rolling on the floor laughing).And when it’s time to get back to work or go to bed, you type GTG (=got to go) or TTYL (=talk to you later).People want to write as fast as possible, and they want to get their ideasacross as quickly as they can. Capital letters are left in the dust, except when expressing feelings, as it takes more time to hold down the “shift” key and use capitals.1). When people are online, they talk by ______.A. using body languageB. drawing simple picturesC. making phone calls .D. using especially short form of English满分：满分：2 2 分2). The Internet makes many people in the world ______.A. talk at the same timeB. discover their friendsC. pick out good things to buyD. find out social problems满分：满分：2 2 分3). The sentence “There is neither time nor space for explanations” means ______.A. people should use words properlyB. people should know the time while talkingC. people online have to express themselves in a simpleway .D. people should talk in a funny way满分：满分：2 2 分4). If you get 15/M/HK as an answer to your A/S/L, it means ______.A. the person who is talking to you is 15 from Hong KongB. you are talking to B. you are talking to a a a boy who is boy who is boy who is 15 15 15 years old years old years old and lives in Hong Kong and lives in Hong KongC. you are talking to 15 boys from Hong Kong at the same timeD. the boy from Hong Kong has been online for 15 minutes满分：满分：2 2 分5). According to the passage, time online can be saved by ______.A. using fewer capital lettersB. drawing picturesC. using the mouse instead of the keyboardD. using both the mouse and the keyboard满分：满分：2 2 分It is believed that music will help us ______.A. relaxedB. worriedC. relaxD. worry满分：满分：3 3 分2. People were ______ the idea of a well-balanced life.A. interested forB. interesting inC. interested inD. interesting for满分：满分：3 3 分3. We can paint an arrow here to _______ the right path.A. seeB. walkC. indicateD. describe满分：满分：3 3 分4. Be sure to ______ the lights before you go to bed.A. turn onB. put offC. turn downD. put out满分：满分：3 3 分 5. We are going to Florida as soon as ________ taking our final exams.A. we finishB. we’ll finish B. we’ll finishC. we finishedD. we’d finish D. we’d finish满分：满分：3 3 分6. ---- Would you mind changing seats with me? ----________________. ----________________.A. Yes, you canB. Of course, I like toC. No, I don’t mindD. Certainly, please do满分：满分：3 3 分7. John always enjoys jogging (慢跑) in the morning, _________ sometimes it rains.A. even thoughB. whileC. sinceD. so满分：满分：3 3 分8. —This book is really excellent. I enjoy it very much.—_____________A. I have just finished a novel.B. What is it about?C. I found it in a small bookstore.D. When did you start reading?满分：满分：3 3 分9. — Could you help me with my homework, please?— __________________ .A. No, no wayB. No, I couldn’tC. No, I can’tD. Sorry, I can’t. I have to go to a meeting right now满分：满分：3 3 分10. We need a huge _____ of money to build a new high school for the children in this area.A. numberB. amountC. pieceD. kind满分：满分：3 3 分11. It ______ out that finding a job is as easy as making a CV.A. turnsB. makesC. pointsD. works满分：满分：3 3 分12. He spends two hours every day surfing the Internet to learn about the______ developments in the field.A. lateB. laterC. latterD. latest满分：满分：3 3 分13. The nurse told the patient to ______ medicine three times a week.A. makeB. doC. countD.take满分：满分：3 3 分14. — Do you mind if I take a couple of hours off this afternoon?— ________________ .A. Never mind.B. OK, but what for?C. Yes, please help yourselfD. Yes, but I don't care满分：满分：3 3 分15.--- Good night and thanks again.---- __________________.A. You can’t say thatB. No, no. It’s what I can doC. How can you say thatD. Good night满分：满分：3 3 分三、完型填空（共三、完型填空（共 1 道试题，共道试题，共 15 分。
东北大学“法学”《行政法学Ⅰ》23秋期末试题库含答案
东北大学“法学”《行政法学Ⅰ》23秋期末试题库含答案第1卷一.综合考核(共20题)1.行政行为以其启动是否需要行政相对人先行申请或声明为标准分为()A.要式行政行为B.依申请行政行为C.自由裁量行政行为D.依职权行政行为2.根据我国宪法，有权制定部门规章的主体是()。
A.全国人大常委会B.国务院部委C.国务院D.全国人大3.因与被申请人具体行政行为有利害关系，通过申请或复议机关通知，参加行政复议的公民、法人或者其他组织是()。
A.代理人B.原告C.被告D.第三人4.《行政处罚法》中规定，行政处罚通常由()的行政主体管辖。
A.违法行为人住所地B.违法行为人经常居住地C.违法行为损害发生地D.违法行为发生地5.行政处罚的程序分为：()、()和()。
A.简易程序B.辩论程序C.听证程序D.一般程序6.行政复议撤销决定的适用情形有()。
A.超越职权B.滥用职权C.适用法律错误D.具体行政行为明显不当7.行政处罚中的听证程序适用于()案件。
A.责令停产停业B.吊销许可证C.吊销执照D.任何罚款8.行政机关实施行政强制措施应当遵守的规定有()。
A.由两名以上行政执法人员实施B.出示执法身份证件C.当场告知当事人的理由、依据D.当场告知当事人依法享有的权利9.下列可提起行政复议的行政行为有()。
A.某市环保局对某违法排污企业作出的处罚决定B.公安交管部门对某司机作出的吊销驾驶执照的决定C.某行政机关对某公务员作出的行政处分决定D.某市政府作出的禁止燃放烟花爆竹的规定10.下列属于行政法调整对象的是()A.业主与物业管理公司的关系B.行政机关与公务员之间的关系C.企业与员工之间的关系D.人大与人大代表之间的关系11.下面哪一个选项的复议机关可以是地方人民政府。
()A.海关B.公安C.国税D.安全机关12.行政处罚的种类有()。
A.人身自由罚B.执行罚C.财产罚D.声誉罚13.行政法规的制定主体是()。
A.全国人大B.全国人大常委会C.国务院D.省级人民政府14.需要确定主体资格的事项的行政许可，需要对申请材料的实质内容进行核实的，行政机关应当指派()名以上工作人员进行核查。
东北大学《电算化会计与审计X》试题与答案
电算化会计与审计一、单选题1SQL语言删除记录数据的语句是。
AInsertBDeleteCDropDErase我的答案：B2系统物理配置方案设计不包括的内容是。
A代码方案设计B设备配置C通信网络的选择和设计D数据库管理系统的选择我的答案：A3下列语句正确的是。
AIf A>B then T=A ; A=B; B=TBIf A>B then T=A A=B B=TCIf A>B then T=A, A=B,B=TDIf A>B then T=A : A=B: B=T我的答案：D4判断表由以下几方面内容组成。
A条件、行动、条件组合及结果B决策问题、决策规则、判断方法、计算方法C条件组合、行动、判断规则、计算方法D 环境描述、条件组合、判断方法、判断规则5SQL语言建立基本表的语句是。
ASelectBDeleteCCreateDUpdate我的答案：C二、多选题1在编写程序前，还需对程序模块的处理逻辑作进一步的详细描述，常用的描述工具有（）。
A图形B表格C公式D语言我的答案：DBA2常用的系统转换的方式有（）。
A分阶段逐步转换方式B迭代转换方式C并行转换方式D直接转换方式我的答案：ACD3电算化审计经过了哪些阶段？A利用电算化审计阶段B透过电算化审计阶段C全程电算化审计阶段D绕过电算化审计阶段4企业在实施会计信息系统时，必须从系统工程和科学管理的角度出发，建立健全管理体系和运作机制，打好系统实施所需的基础。
具体来说，这些工作主要包括：。
A企业的领导班子要具有改革进取的决心，对实施的系统有一致的明确目标；B建立现代企业制度、制定明确、量化的应用目标；C扎实做好信息资源的基础管理工作；D建立一支高素质的信息技术队伍，E制定和完善企业信息化工作规范；F建立与会计信息系统相匹配的网络环境。
我的答案：ABCDEF5逻辑覆盖测试常用的方法有。
A判断覆盖B条件覆盖C判断／条件覆盖D条件组合覆盖我的答案：BDAC6领导小组的主要职责是：。
东北大学“法学”《国际法Ⅱ》23秋期末试题库含答案
东北大学“法学”《国际法Ⅱ》23秋期末试题库含答案第1卷一.综合考核(共20题)1.下列属于国际法允许的单方终止条约的理由有()。
A.缔约方严重违反条约义务B.情势变迁C.条约未经登记D.条约违反国内法2.组成国际法院的法官人数是10人。
()A.正确B.错误3.4.引申出国家司法豁免权的法律原则是()。
A.平等者之间无管辖权B.国家间应互相尊重C.国家司法独立D.一国不得干涉他国事务5.使馆的职务包括以一切手段调查接受国的状况及发展情形，并向派遣国政府报告。
()A、对B、错6.在国际法的历史上，最古老的国际法渊源是()。
A.国际习惯B.国际条约C.一般法律原则D.国际法院判例7.因出生而取得国籍的方式是继有国籍原则。
()A.正确B.错误8.国际航空法的法律渊源主要是国际条约。
()A.正确B.错误9.根据1958年联合国国际法委员会制定的《仲裁程序示范规则》的规定，下列哪些情况下仲裁裁决无效?()A、仲裁协议无效B、裁决理由不足C、仲裁员有诈欺行为D、裁决严重违反基本程序规则10.国际海底区域当前的开发制度是()。
A.联合开发制度B.注册开发制度C.平行开发制度D.单一开发制度11.国家领土主权不受任何限制。
()A.正确B.错误12.关于仲裁裁决表述正确的有()。
A、对当事国有法律拘束力B、各当事国可不予执行C、由仲裁庭仲裁员多数作出D、可由当事国一方就构成裁决的决定性事实提出复核13.甲、乙、丙三国订有贸易条约。
后甲乙两国又达成了新的贸易条约，其中许多规定与三国前述条约有冲突。
新条约中规定，旧约被新约取代。
甲、乙两国均为《维也纳条约法公约》的缔约国。
根据条约法，下列判断中，错误的是()。
A、旧约尚未失效B、新约不能完全取代旧约C、新约须经丙国承认方能生效D、丙国与甲乙两国间适用旧约14.甲国总统任命杰克逊为驻中华人民共和国大使，则杰克逊开始执行职务的时间是()。
A.进入中华人民共和国境内B.甲国总统作出任命决定以后C.呈递国书后D.中华人民共和国主席第一次接见以后15.有权提出引渡请求的国家有()。
东北大学“冶金工程”《工程力学(一)》23秋期末试题库含答案
东北大学“冶金工程”《工程力学（一）》23秋期末试题库含答案第1卷一.综合考核(共20题)1.关于摩擦力，下列哪些说法是正确的()A、相互压紧的粗糙物体之间总是有摩擦力的B、一个物体只有在另一个物体表面运动或有相对运动趋势时，才有可能受到摩擦力C、静止的物体一定受到静摩擦力的D、具有相对运动的两个物体，一定存在摩擦力2.平面汇交力系的必要和充分条件是各力在两个坐标轴上投影的代数和()A、一个大于0，一个小于0B、都等于0C、都小于0D、都大于03.下列说法正确的是()A、分力一定大于合力B、分力一定等于合力C、分力与合力的大小关系不一定4.弯曲正应力在横截面上沿高度的分布是()。
A、线性、上下边缘大、中性轴为零B、线性、下边缘小、上边缘大C、线性、上下边缘小、中性轴大D、线性、下边缘大、上边缘小5.6.弯曲变形时，弯曲正应力在横截面上沿载荷轴____。
A、均匀分布B、线性分布C、假设均匀分布D、抛物线分布7.一般情况，过一点在最大正应力作用的截面上有无切应力?在最大切应力作用的截面上有无正应力?()A、有、没有B、没有、有C、有、有D、没有、没有8.如图所示，如果使力F直接作用在梁的C截面上，则梁上|M|max与|Fs|max 为()A、前者不变，后者改变B、两者都变C、前者改变，后者不变D、两者都不变9.关于材料的力学一般性能，有如下结论，试判断哪一个是正确的：()A、脆性材料的抗拉能力低于其抗压能力B、脆性材料的抗拉能力高于其抗压能力C、韧性材料的抗拉能力高于其抗压能力D、脆性材料的抗拉能力等于其抗压能力10.物体受平面内三个互不平行的力作用而平衡，则三个力的作用线()。
A、必交于一点B、必交于二点C、必交于三点D、交于一点、二点、三点都可能11.扭转的内力是()。
A、轴力B、扭矩C、剪力D、弯矩12.关于力偶，以下说法中哪个是正确的?()A、组成力偶的两个力大小相等、方向相反，是一对作用力与反作用力B、组成力偶的两个力大小相等、方向相反，是平衡力系C、力偶对任一点之矩等于力偶矩矢量D、力偶在任一坐标轴的投影，等于该力偶矩的大小13.轴向拉伸和压缩的内力是()。