单项填空相似题集
高三名词性从句单项选择题30题语法填空单句练习题40道含答案
高三名词性从句单项选择题30题语法填空单句练习题40道含答案1.【★★★】There’s no scientific evidence suggesting that blue light is harmful to our eyes. But many people still think it is, which is _______blue light-blocking glasses are so popular.（2019济南一模）A. whyB. howC. whenD. what2.【★☆☆】_______medicine works in a human body is a question _______ not everyone can understand fully.A. How; thatB. That; whichC. What; whichD. What; that3.【★★★】The traditional view is _______we sleep because our brain is “programmed” to make us do so.A. whenB. whyC. whetherD. that4.【★★☆】It is often the case _______anything is possible for those who hang on to hope. （2017江苏）A. whyB. whatC. asD. that5.【★★★】There are times when your heart is not in your work. This can affect your work. So, slow down and think ______you really want to do at that moment.（2019全国II）A. howB. whetherC. whatD. that6.【★☆☆】Write a poem about _______courage, determination, and strength have helped you face challenges in your life.A. howB. whichC. whatD. that7.【★★☆】And contrary to existing research says _______you should avoid eating with heavier people who order large portions (份).1.where B. what C. that D. when8.【★★☆】Also, asking for help is good when you’restruggling. You learn _______to do things a lot faster and more efficiently. （2020烟台一模）1.where B. how C. that D. when9.【★★☆】Seven middle school students visited Yellow-Purple to learn _______was needed, and then contacted the supplier of their 3D printer, ACT Group.（2020临沂一模）A. whomB. howC. whatD. that10.【★★★】Jane moved aimlessly down the tree-lined street, not knowing _______she was heading. （2017北京）A. whyB. whereC. howD. when11.【★★☆】It is therefor e natural _______China’s contribution to the UN budget should rise from 2.05 percent in 2005 to 12.01 percent this year.（2019 青岛一模)A. whenB. howC. whatD. that12.【★★☆】Every year, _______makes the most beautiful kite will win a prize in the Kite Festival.（2017北京）A. whateverB. whoeverC. whomeverD. whichever13.【★★★】Thus, the keyboard can determine people's identities, and by extension, _______they should be given access to the computer it's connected to—regardless of _______someone gets the password right.1.whether,whether B. which,where C. what,why D. how,whether14.【★★☆】With ACT Group's help, the students learned _______to scan Yellow- Purple's existing foot cast, then use that data to create a more efficient boot with sculpting software.（2020临沂一模）A. whenB. howC. whatD. that15.【★★☆】This is _______the millipede turns dead leaves into food for others and helps life continue. （2019 青岛一模)A. whatB. whichC. howD. that16.【★★☆】The message you intend to convey through words may be the exact opposite of _______others actually understand. （2019天津月考）A. whyB. thatC. whichD. what17.【★★☆】The North Pole isn’t _______people would consider a pleasant place for creatures to live as the average winter temperature there is 40℃.A. howB. thatC. whichD. what18. 【★★☆】It is easy to see _______the ground has been pushed up violently by movement deep in the Earth.A. whoB. whereC. whichD. what19.【★★★】As a new graduate, he doesn’t know _______ it takes to start a business here.A. howB. whatC. whenD. which20.【★★☆】One reason for her preference for city life is _______she can have easy access to places like shops and restaurants.A. whatB. howC. thatD. why21.【★★☆】In the case, the judge decided _______since the man was sentenced to prison for years, not days, Leap Day didn't make a bit of difference.（2020济南一模）A. themB. thatC. whichD. whom22.【★★★】You fear _______others will think about you and _______they will reject and dislike you. (2019 潍坊一模)A. what; thatB. that; whatC. which; whatD. that; that23.【★★☆】 It also gives people a chance to see _______the new home looks like.（2020全国卷三）A. whenB. whatC. whichD. where24.【★★☆】We haven’t settled the question of _______ it isnecessary for him to study abroad.A. ifB. whereC. whetherD. that25.【★★☆】Without his support, we wouldn’t be _______ we are now.（2018北京）A．how B．when C．where D．why26.【★★☆】The newcomer went to the library the other day and searched for _______he could find about Mark Twain.A．wherever B．however C．whatever D．whichever27.【★★☆】Police have found ________ appears to be the lost ancient statue.A．which B．where C．how D．what28.【★★☆】The mother didn’t know _________to blame for the broken glass as it happened while she was out.A. whoB. whenC. howD. what29.【★★★】My grandmother helped me believe that I could accomplish _______ I put my mind to. （2020天津）A．whenever B．whatever C．wherever D．whichever30.【★☆☆】It is not a problem _______we can win the battle; it’s just a matter of time.（2020江苏）A．whether B．why C．when D．where高中名词性从句语法填空单句练习题40道1.【★☆☆】But our plan is _______these girls will apply what they learn to other girls through the power of their voice'(2020浙江一模)2.【★☆☆】They tend to know _______shoppers want—even before shoppers know themselves.（2020济南一模）3.【★★☆】Along with this, Max has traveled to Africa several times to donate equipment and coach the kids, developing Angels at Bat into _______it is today.4.【★★☆】Giving can be driven by guilt, duty, praise, orperhaps the hope _______giving will somehow make up for past cruelty or ignorance. （2019潍坊二模）5.【★★★】_______ some people regard as a drawback is seen as a plus by many others.6. 【★★☆】He realized _______it was because there weren’t enough trees to protect them from the heat. （2020全国卷一）7. 【★★☆】A lot of children’s books have pict ures which may give you a clue as to what or to _______the passage is referring.（2019聊城二模）8.【★★☆】_______fashion differs from country to country may reflect the culture differences from one aspect.9. 【★★☆】It’s hard to tell exactly _______many people agree with him, but research indicates _______he numbers have been rising for some time. （2020全国卷三）10.【★★☆】If you can wait a bit before you use a dictionary, you may be surprised _______you can get merely from the context of the sentence in the story.(2019聊城二模)11.【★★☆】 When he found _______it was all to be his, he was so delighted that he could hardly speak, but his bright smiling face spoke for him. （2020全国卷一）12.【★☆☆】The gold medal will be awarded to _______wins the first place in the bicycle race.（2018天津)13.【★★★】Data collected from the device could be used to recognize different participants based on _______they typed, with very low error rates.（2019全国卷一）14.【★★★】Your support is important to our work. _______you can do helps.(2016北京)15. 【★☆☆】The manager put forward a suggestion _______we should have an assistant. There is too much work to do.(2016天津)16.【★★☆】 _______we understand things has a lot to do with what we feel.17.【★☆☆】 _______we can have clean drinking water lies in _______ effective measures will be taken by the government about water pollution.18.【★★★】 _______the delayed flight will take off depends much on the weather.19.【★☆☆】Every year, _______makes the most beautiful kite will win a prize in the Kite Festival.20.【★★☆】The most pleasant thing of the rainy season is _______one can be entirely free from dust.21.【★★☆】The companies are working together to create _______will be the best means of transport in the 21st century.22.【★★☆】There is a common belief among the students in our school _______they should try their best to learn.23.【★★☆】It is often the case _______anything is possible for those who hang on to hope.24.【★☆☆】I made a promise to myself _______this year, my first year in high school, would be different.25.【★★★】It remains to be seen _______ the newly formed committee’s policy can be put into practice.26.【★☆☆】The limits of a person’s intelligence,generally speaking,are fixed at birth,but _______he reaches these limits will depend on his environment.27.【★☆☆】We agreed to accept _______they thought was the best professor in the college.28.【★★★】Being a good listener is a kind of quality, which is _______ it takes to keep friendship.29.【★☆☆】You have to know _______you’re going if you are to plan the best way of getting there.30.【★★☆】She was very interested in _______I had told her.31.【★★☆】】Scientists have obtained more evidence _______ plastic is finding its way into the human body.(2019江苏)32.【★☆☆】What students do at college seems to matter much more than _______ they go.(2019北京)33.【★★☆】I'm not sure _______ is more frightened, me or the female gorilla that suddenly appears out of nowhere.（2018全国卷三）34.【★★☆】I don’t trust his promise _______ he will buy mea new car.35.【★★★】Do _______ you think is right _______ difficulties you may have.36.【★★☆】_______ made the school proud was_______ more than 90% of the students had been admitted to key universities .37.【★★☆】The games my parents taught me_______ I was a child turned out to be very useful later in my life.（2018全国卷二）38.【★★☆】Over thousands of years，they began to depend less on _______ could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown.（2020浙江）39.【★☆☆】The most pleasant thing of the rainy season is_______ one can be entirely free from dust.（2016北京）40.【★★☆】By boat is the only way to get here, which is_______ we arrived.（2018江苏）。
化工热力学习题集(附答案)2.
模拟题一1. T 温度下的纯物质，当压力低于该温度下的饱和蒸汽压时，则气体的状态为（ ）A. 饱和蒸汽B. 超临界流体C. 过热蒸汽2. T 温度下的过冷纯液体的压力P （ ）A. >()T P sB. <()T P sC. =()T P s3. T 温度下的过热纯蒸汽的压力P （ ）A. >()T P sB. <()T P sC. =()T P s4. 纯物质的第二virial 系数B （ ）A 仅是T 的函数B 是T 和P 的函数C 是T 和V 的函数D 是任何两强度性质的函数 5. 能表达流体在临界点的P-V 等温线的正确趋势的virial 方程，必须至少用到（ ）A. 第三virial 系数B. 第二virial 系数C. 无穷项D. 只需要理想气体方程 6. 液化石油气的主要成分是（ ）A. 丙烷、丁烷和少量的戊烷B. 甲烷、乙烷C. 正己烷7. 立方型状态方程计算V 时如果出现三个根，则最大的根表示（ ）A. 饱和液摩尔体积B. 饱和汽摩尔体积C. 无物理意义8. 偏心因子的定义式（ ）A. 0.7lg()1s r Tr P ω==-- B. 0.8lg()1s r Tr P ω==-- C. 1.0lg()s r Tr P ω==-9. 设Z 为x ，y 的连续函数，，根据欧拉连锁式，有（ ）A. 1x y zZ Z x x y y ⎛⎫⎛⎫∂∂∂⎛⎫=- ⎪ ⎪ ⎪∂∂∂⎝⎭⎝⎭⎝⎭ B. 1y x Z Z x y x y Z ⎛⎫∂∂∂⎛⎫⎛⎫=- ⎪ ⎪ ⎪∂∂∂⎝⎭⎝⎭⎝⎭ C. 1y x Z Z x y x y Z ⎛⎫∂∂∂⎛⎫⎛⎫= ⎪ ⎪ ⎪∂∂∂⎝⎭⎝⎭⎝⎭ D. 1y Z x Z y y x x Z ∂∂∂⎛⎫⎛⎫⎛⎫=-⎪ ⎪ ⎪∂∂∂⎝⎭⎝⎭⎝⎭ 10. 关于偏离函数M R ，理想性质M *，下列公式正确的是（ ）A. *R M M M =+B. *2R M M M =-C. *R M M M =-D. *R M M M =+11. 下面的说法中不正确的是 ( )（A ）纯物质无偏摩尔量 。
4第四专题习题集
(一)单项选择题1.1955 年底在党内首先提出如何以苏联经验为戒，探索适合中国国情的社会主义建设道路的重大问题的是 ( A )A.毛泽东B.周恩来C.陈云D.邓小平2.1956 年底毛泽东发表的《论十大关系》成为探索中国特色的社会主义建设道路的先声，文章中提出我国社会主义建设必须围绕着一个基本方针，就是( B )A.正确区分和处理两类不同性质的矛盾B.调动国内外一切积极因素，把中国建设成为社会主义强国C.中国共产党和民主党派“长期共存、互相监督”D. “调整、巩固、充实、提高”的方针3.中共八大在探索中国自己的社会主义建设道路方面最重要的贡献是( A )A.对当时和其后一个时期我国社会主义条件的阶级状况、社会状况及国情的判断、主要矛盾和党的主要任务的分析是基本正确的B.提出了加强民主与法制建设的思想C.提出了加强执政党建设的思想D.提出了既反保守、又反冒进，在综合平衡中稳步前进的经济建设的方针4.在 20 世纪 60 年代初的国民经济调整时期，最早支持和提倡实行农业生产责任制的中央领导人是( B )A.陈云B.邓子恢C.刘少奇D.邓小平5.在 1956 年知识分子问题会议上，周恩来对知识分子的阶级属性的表达是( D )A.小资产阶级B.民族资产阶级C.知识分子的绝大部分己经是工人阶级的一部分D.大资产阶级6.我国社会主义建设的战略目标是 ( D )A.实现农业、工业、国防和科技现代化B.实现工业化和经济的社会化、市场化和现代化C.实现经济、政治、文化现代化D.把我国建设成为富强、民主、文明的社会主义现代化国家7. “阶级斗争基本结束，但没有完全结束”出自( D )A.《不要四面出击》B. 《论联合政府》C. 《论十大关系》D. 《关于正确处理人民内部矛盾的问题》8.毛泽东在《论十大关系》中提出我国社会主义建设必须围绕的一个基本方针是( C )A.发展生产力，把我国尽快地从落后的农业国变为先进的工业国B.正确处理无产阶级同资产阶级的矛盾C.调动国内外一切积极因素，为社会主义服务D.彻底消灭剥削制度，继续肃清反革命残余势力9.毛泽东在《关于正确处理人民内部矛盾的问题》中提出解决社会主义社会基本矛盾的途径是( C )A.进行新民主主义革命B.进行社会主义革命C.依靠社会主义制度本身的力量进行改革D.进行无产阶级专政下的继续革命10.1956 年中共八大提出我国国内的主要矛盾是( D )A.人民大众同帝国主义、封建主义及其走狗国民党反动派残余势力的矛盾B.无产阶级同资产阶级的矛盾C.社会主义道路与资本主义道路的矛盾D.人民对于经济文化迅速发展的需要同当前经济文化不能满足人民需要的状况之间的矛盾(二)多项选择题1. 集中体现毛泽东探索中国社会主义建设道路所取得的理论成果的著作有( CD )A.《中国人民站起来了》B. 《论人民民主专政》C. 《论十大关系》D. 《关于正确处理人民内部矛盾》2.在探索社会主义建设道路的初期，以毛泽东为代表的党的第一代领导人在经济体制和管理制度上提出的思想有( ABCD )A. “三个主体，三个补充”的思想B.消灭资本主义，又搞资本主义C.实行农业生产责任制D.发展社会主义商品生产，重视价值规律3.毛泽东在《关于正确处理人民内部矛盾的问题》中认为社会主义社会两类不同性质的矛盾是( CD )A.生产关系和生产力的矛盾B.上层建筑和经济基础之间的矛盾C.敌我矛盾D.人民内部矛盾4.在社会主义改造基本完成以后，正确处理人民内部矛盾的具体方针是( ABCD )A.经济上实行“统筹兼顾、适当安排”B.政治上实行团结—批评—团结C.科学文化上实行“百花齐放、百家争鸣”D.共产党和各民主党派关系上实行“长期共存、互相监督”5.毛泽东指出，从建设社会主义基本制度到建成一个伟大的社会主义国家，至少需要五十年到一百年的时间，这是由于( ABCD )A.我国进入社会主义的特殊历史条件决定的B.我国的现实状况决定的C.我国现代化建设所处的国际环境和时代特点决定的D.社会发展的自身规律决定的6.上个世纪 60 年代，党提出了实现四个现代化的战略目标，并提出了要分两步走的发展战略，这两步走是指( AB )A.第一步，用 15 年的时间，即在 1980 年以前，建成一个独立的比较完整的工业体系和国民经济体系B.第二步，在本世纪内，全面实现工业、农业、国防和科学技术的现代化，使我国国民经济走在世界的前列C.不发达的社会主义D. 比较发达的社会主义7.下列关于社会主义矛盾的说法中正确的有( BCD )A.社会主义基本矛盾是对抗性的矛盾B.社会主义存在阶级矛盾和人民内部矛盾两种矛盾C.在社会主义条件下，阶级矛盾基本结束，但还没有完全结束D.社会主义基本矛盾可以通过社会主义制度自身得到解决8.下列关于党在五六十年代探索社会主义的发展阶段的说法中正确的( ABC )A.社会主义可以分成不发达的社会主义和比较发达的社会主义两个阶段B.中国处于不发达的社会主义阶段，比较发达的社会主义要比不发达的社会主义阶段需要更长的时间C.我国当前人口多，底子薄，要建成比较发达的社会主义至少需要五十年至一百年的时间D.社会主义在中国将很快建成，共产主义很快就会实现9.在社会主义改造基本完成以后，正确处理人民内部矛盾成为国家政治生活的主题。
中国现代文学习题集含
中国现代文学习题集（含答案）一、填空题1．文学革命开始于 () 年，它是 () 在新的历史条件下的展。
2．1915 年 9 月() 主编的（）标志住新文化运动的开始。
3． 1917 年 1 月，《新青年》公布胡适的() ，这是提议文学革命的第一篇理论文章。
4．胡适在《建设的文学革命论》中提出了() 的口号。
5．胡适创作的现代最早的白话戏剧是() 。
6．陈独秀在《文学革命论》中提出文学革命的() 。
7．周作人在其《老百姓文学》一文中提出() 与 () 的创作原则。
8． 1917-1920 年文学革命时期的文学思潮，() 占主潮地位。
9． 1917-1921 年郭沫若的文学思想，集中表现在论文() 和通信集 ()中。
10．最早代表复古主义文学思潮反对文学革命的是() ，他在《新申报》上公布() 、 () 、等文言小说，隐射和攻击新文化运动。
11． 1921 年 1 月成立于 () 的 () 是文学革命后出现的第一个新文学社团。
12、文学研究会的会刊有() 和 () 。
13. 文学研究会被称为 () 的现实主义文学门派。
14． 1921 年 7 月成立于 () 的 () ，是五四时期第一个浪漫主义文学社团。
15．创立社在思想上倾向于() 。
16．五四时期双峰并峙的两大新文学社团是() 和 () 。
17．在创立社中还有象征派诗人 () 、 () 、 () 。
18． 1923年成立的新月社，主要成员有() 、 () 、 () 等，都是欧美留学生。
19． 1926年，徐志摩、闻一多在《晨报副刊》上主编《诗镌》周刊，提议() ，被称为 () 。
20．闻一多在《诗的格律》一文中提出了“三美”主张，即() 、 () 、() 。
21．新月社后期，梁实秋宣扬() ，反对无产阶级革命文学。
22．语丝社成立于()年，其主要成员有() 、 () 、() 。
23．语丝社对中国现代() 发展作出了重要贡献。
24．成立于 1925 年的 () 和 () ，都是鲁迅倡导和领导的。
广东中职英语模考试题库单项填空集中练(二)
广东中职英语模考试题库：单项填空单项填空(共15小题；每小题l分，满分l 5分)从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，在答题卡上将该项涂黑。
1．---Our holiday cost a lot of money．----Did it? Well，that doesn’t matter you enjoyed yourselves．A．as long as B．unless C．as soon as D．though2．We were caught in a thunderstorm，without anywhere to .A．escape B．1eave C．shelter D．part3．He speaks English well indeed，but of course not a native speaker．A．as fluent as B．more fluent than C．so fluently as D．much fluently than 4．We don’t have the b ook in stock but you can it．A．order B．write C．buy D．return5．---If you keep on breaking the rules，you will be fired．---- ? I don’t care．A．What for B．How comeC．So what D．Why so．6．James Naismith，the inventor of basketball，made l3 original rules of basketball . A．at all B．on average C．in total D．at length7．I'll give you my friend's home address, I can be reached most evenings．A．which B．when C．whom D．where8．team wins on Saturday will go through to the national championships．A．No matter what B．No matter C．Whatever D．Whichever9．---Must I see a doctor right now?---No，you see a doctor for the time being．A．can’t B．shouldn't C．needn’t D．mustn’t10．If I had seen the movie，I you all about it now．A．would tell．B．will tell C．have told D．Would have told11．，they set out to break the record for cross-channel swim.A．Well equipping B．To be well equippedC．Well equipped D．Being equipped well12．I to go for a walk，but someone called and I couldn't get away．A．was planning B．planned C．had planned D．would plan13．I'm thinking of doing something creative in the interview to myself other interviewees．A．refer；to B．name；after C．distinguish；from D．attach；to 14．He was robbed last night, but he didn't have much money on him then．A．fortunately B．eventually C．certainly D．surprisingly15．----When did it begin to snow?----It started the night.A．by B．during C．on D．at第一节单项填空（共15小题：每小题1分，共15分）从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
电机的单项选择判断填空简答试题带答案
1、变压器的主要作用是将某一等级的交流(电压 )变换成另一等级的交流( 电压 )2、变压器一次电势和二次电势之比等于(一次侧匝数 )和(二次侧匝数 )3、电力变压器中的变压器油主要起(绝缘 )、( 冷却 )和( 灭弧 )作用。
4、电力变压器的分接开关是用来改变变压器电压(变比 )的装置，以便达到调节副边(电压)5、变压器的额定电压和额定电流均指变压器的( 线 )电压和( 线 )6、变压器空载时的损耗主要是由于(铁芯 )的磁化所引起的(磁滞 )和( 涡流 )7、在测试变压器参数时，须做空载试验和短路试验。
为了便于试验和安全，变压器的空载试验一般在(低压侧 )加压；短路试验一般在( 高压侧 )8、变压器铁芯饱和程度愈高，其励磁电抗Xm就愈( 小 )9、若将变压器低压侧参数折算到高压侧时，其电势(或电压)应(乘以变比 )、电流应(除以变比 )、电阻(或电抗)应( 乘以变比的平方)10、三相组式变压器各相磁路(彼此无关)，三相芯式变压器各相磁路(彼此相关)。
11、三相变压器组不能采用( Y/Y )连接方法，而三相芯式变压器可以采用。
12、变压器并联运行的条件是(额定电压与变比相等 )、(连接组别相同)、( 短路阻抗的百分数相等 )13、当三相变压器接成星形(Y)时，其线电压是相电压的（3)倍，线电流与相电流( 相等 )。
14、当三相变压器接成三角形(D)时，其线电压与相电压( 相等 )，线电流是相电流的( )15、变压器在运行时，当(不变损耗)和( 可变 )损耗相等16、有两台变压器，额定电压分别为10kV／0.04kV和10.5kV ／0.4kV，两台变压器的变比差值△K为( 5% )，若其它条件满足并联运行，根据计算结果，这两台变压器( 不能 )17、三绕组变压器的额定容量是指( 最大的线圈容量:3I线U线 )18、自耦变压器与同容量的两绕组变压器比较，它的空载电流( 小 )19、自耦变压器适用于一、二次侧(电压 )相差不大的场合，一般在设计时，变比K U( 小于或等于2 )20、电焊变压器实际上是一台(特殊)的降压变压器，它的外特性( 比较软 )，短路电流( 不大 )21、整流变压器的容量一般取一、二次绕组容量的(平均值 )，又称为( 计算容量 )22、单相绕组的感应电势与(匝数 )、(频率 )和(每极磁通 )23、线圈的短距系数表示了短距线圈比整距线圈产生的电势( 减少 )的程度。
高考英语二轮专题复习 单项填空 连词和状语从句提分训练(真题集锦,含解析)新人教版(1)
连词和状语从句1.（2011•四川卷•T4）Frank insisted that he was not asleep ________ I had great difficulty in waking him up.A. whetherB. althoughC. forD. so【解析】选B。
考查让步状语从句。
句意：尽管我费了好大劲才叫醒弗兰克,但是他坚持说没有睡觉。
语意上构成了一种让步，故选B。
2.（2011•四川卷•T6）As is reported, it is 100 years ________ Qinghua University was founded.A. whenB. beforeC. afterD. since【解析】选D。
考查时间状语从句。
句意:据报道，清华大学建校100年了。
It’s +时间段+since 从句意为“自从……以来……“。
故选D。
3.（2011•全国卷I• T22）Try ________ she might, Sue couldn’t get the door open.A. ifB. whenC. sinceD. as【解析】选D。
考查连词。
句意：尽管苏尽力了，但她没能把门打开。
as表示“虽然”引导状语从句时，从句的结构为：表语、状语或部分谓语+as+主语+其他。
根据句子结构以及句意可知选D。
4.（2011•全国卷I• T25）—Someone wants you on the phone．—________ nobody knows I am here.A．Although B. And C．But D. So【解析】选C。
考查连词。
句意：——有人在电话中找你。
——但是没有人知道我在这儿。
根据语境可知此处表示转折。
故选C。
5.（2011•山东卷•T23） Find ways to praise your children often, ________ you’ll find they will open their hearts t o you.A. tillB. orC. andD. but【解析】选C。
汽车电器总复习题集
一、单项选择题：1、20世纪60年代，汽车上开始广泛应用电子控制设备，主要标志是（）在汽车上应用。
A、汽车交流发电机B、汽车电子点火系C、电子燃油控制系统D、制动防抱死系统（ABS）2、以下（）不属于用电设备。
A、燃油表B、软轴式车速表C、中控门锁D、空调系统3、目前，由于汽车电子设备的电子化程度的提高和设备的增多，未来的汽车电源系统会采用（）。
A、12VB、24VC、42VD、48V4、以下（）不属于蓄电池的主要用途的。
A、缓和电气系统中的冲击电压B、存储发电机发出的多余电能C、汽车正常行驶时给用电设备供电D、当用电需求超过发电机供电能力时，参与供电。
5、蓄电池的正极板上的活性物质是（）A、深棕色的PbO2B、青灰色海绵状铅PbC、白色的PbSO4D、黑色的PbOH26、为了提高蓄电池栅架的机械强度并改善浇铸性能，在的栅架中加入了（）。
A、铝B、锑C、铁D、镁7、干式荷电铅蓄电池与普通蓄电池的主要区别是蓄电池的（）不同。
A、电解液B、负极板的制造工艺C、容量不同D、充电方式不同8、锑在蓄电池中的副作用是（）。
A、容易形成自放电B、加快电解水的速度C、电动势低，使充电电流增大D、以上都对9、以下（）不属于免维护蓄电池的特点。
A、采用铅－钙－锡合金材料B、采用氧化银过滤器的通气孔C、采用穿壁式联条D、将正极板装在聚氯乙烯隔板袋内10、免维护蓄电池的荷电状况相对密度计若呈绿色圆点，证明蓄电池存电（）。
A、100%B、65%以上C、20%－30%左右D、全部放完电11、免维护蓄电池中氧化银的主要作用是（）。
A、与H2反应还原成水B、催化Pb或PbO2与硫酸反应C、减少自放电的可能D、减缓电解水的速度12、丰田车用蓄电池的型号为34B19L，其中的“L”代表（）。
A、负极在电池的左侧B、属于小型蓄电池C、低起动电流D、蓄电池的长度13、锂蓄电池的单节工作电压为（）。
A、2VB、3.7VC、6VD、12V14、目前电动汽车采用的蓄电池主要是（）。
线性代数试题集.docx
1 2000 2001 20020 -1 02003 一 —亠0 0 -1 2004 0 0 0 2005-30 -2中元素0的代数余子式的 (1)一、单项选择题(每小题2分，共16分)1. 设A 是方阵且非奇异，若AB=AC,则必有() (a)B=C; b) BOO; (c) A _,=B=C; (d) BHC.2. 设A 为3阶方阵，|A| = 3,则其行列式|3舛是() (a) 3 (b) 32 (c) 33 (d) 34kx +z = 03. 设齐次线性方程组/ 2x +幼+ z = 0有非零解，贝Uk 二()kx-2y + z = Q (a) 2 (b) 0 (c) -1 (d) -2 4. 下列矩阵为初等矩阵的是 ................... ()<0 () r‘10 0、了3 1 2'1 0 0、 (a) 0 1 0 (b) 0 1 2 (c) 1 2 3 (d) 0 0 00 ° 丿<0 1 2 丿<2 3 1 丿<0 0 1, 5.设向量组a"?,…,勺线性相关，则一定有 .......... ()6. 设n 阶方阵A 为非奇异阵，则必有() (a)秩(A) =n ； (b)秩(A) =0；(c) |A|=0； (d)方程组AX=0有非零解。
7. 设向量(2, -3, 5)与向量(-4, 6, k)线性相关，则k 二() (a) 5； (b) -5； (c) 10； (d) -10.8. 设AX=b 是一非齐次线性方程组，g H 提其任意2个解，则下列结论错误的是() (a) 77i +1 是 的一个解;(b)丄〃| +丄?72 是 AX=b 的一个解;(c) 〃[- ?]2 是 AX=0的一个解；(d) 2从一〃2是AX 二b 的一个解。
二、填空题(每格2分，共26分)1.求行列式的值⑴(a)⑦心，…心一i 线性相关(b),色，…，4+1线性相关(c) Qi®，…,线性无关 (d) a 〕, a?，…,a$+i 线性无关值为1 2 3 2-1 4三、证明题(任酬题每/J 、题5分共10分)1. 设0 ,线性无关，试证：Q|,Q| +。
线性代数习题集(带答案)
第一部分 专项同步练习第一章 行列式一、单项选择题1．下列排列是5阶偶排列的是 ( ).(A) 24315 (B) 14325 (C) 41523 (D)243512．如果n 阶排列n j j j 21的逆序数是k , 则排列12j j j n 的逆序数是( ). (A)k (B)k n - (C)k n -2! (D)k n n --2)1(3. n 阶行列式的展开式中含1211a a 的项共有( )项.(A) 0 (B)2-n (C) )!2(-n (D) )!1(-n4．=0001001001001000( ).(A) 0 (B)1- (C) 1 (D) 25.=0001100000100100( ).(A) 0 (B)1- (C) 1 (D) 26．在函数1323211112)(x x xxx f ----=中3x 项的系数是( ).(A) 0 (B)1- (C) 1 (D) 27. 若21333231232221131211==a a a a a a a a a D ，则=---=323133312221232112111311122222 2a a a a a a a a a a a a D ( ). (A) 4 (B) 4- (C) 2 (D) 2- 8．若a a a a a =22211211，则=21112212ka a ka a ( ).(A)ka (B)ka - (C)a k 2 (D)a k 2-9． 已知4阶行列式中第1行元依次是3,1,0,4-, 第3行元的余子式依次为x ,1,5,2-, 则=x ( ).(A) 0 (B)3- (C) 3 (D) 210. 若5734111113263478----=D ，则D 中第一行元的代数余子式的和为( ). (A)1- (B)2- (C)3- (D)011. 若2235001011110403--=D ，则D 中第四行元的余子式的和为( ). (A)1- (B)2- (C)3- (D)012. k 等于下列选项中哪个值时，齐次线性方程组⎪⎩⎪⎨⎧=++=++=++000321321321x x kx x kx x kx x x 有非零解.( )(A)1- (B)2- (C)3- (D)0二、填空题1. n 2阶排列)12(13)2(24-n n 的逆序数是.2．在六阶行列式中项261365415432a a a a a a 所带的符号是.3．四阶行列式中包含4322a a 且带正号的项是.4．若一个n 阶行列式中至少有12+-n n 个元素等于0, 则这个行列式的值等于.5. 行列式=100111010100111.6．行列式=-000100002000010n n .7．行列式=--001)1(2211)1(111n n n n a a a a a a .8．如果M a a a a a a a a a D ==333231232221131211，则=---=323233312222232112121311133333 3a a a a a a a a a a a a D .9．已知某5阶行列式的值为5，将其第一行与第5行交换并转置，再用2乘所有元素，则所得的新行列式的值为.10．行列式=--+---+---1111111111111111x x x x .11．n 阶行列式=+++λλλ111111111.12．已知三阶行列式中第二列元素依次为1,2,3, 其对应的余子式依次为3,2,1，则该行列式的值为.13．设行列式5678123487654321=D ，j A 4)4,3,2,1(=j 为D 中第四行元的代数余子式，则=+++44434241234A A A A .14．已知db c a cc a b b a b c a cb a D =， D 中第四列元的代数余子式的和为.15．设行列式62211765144334321-==D ，j A 4为)4,3,2,1(4=j a j 的代数余子式，则=+4241A A ，=+4443A A .16．已知行列式nn D001030102112531-=，D 中第一行元的代数余子式的和为.17．齐次线性方程组⎪⎩⎪⎨⎧=+-=+=++0020232121321x x x kx x x x kx 仅有零解的充要条件是.18．若齐次线性方程组⎪⎩⎪⎨⎧=+--=+=++0230520232132321kx x x x x x x x 有非零解，则k =.三、计算题1.cb a d b a dc ad c b dcbad c b a d c b a++++++++33332222; 2．yxyx x y x y y x y x +++；3．解方程0011011101110=x x xx ； 4．111111321321221221221----n n n n a a a a x a a a a x a a a a xa a a a x；5. na a a a 111111111111210(n j a j ,,1,0,1 =≠)； 6. bn b b ----)1(1111211111311117. n a b b b a a b b a a a b 321222111111111； 8．xa a a a x a a a a x a a a a x n nn321212121;9.2212221212121111nn n nnx x x x x x x x x x x x x x x +++; 10. 21000120000021001210001211．aa a aa a a a aD ---------=1101100011000110001.四、证明题1．设1=abcd ，证明：011111111111122222222=++++dddd c c c c b b b b a a a a .2．3332221112333332222211111)1(c b a c b a c b a x c b x a x b a c b x a x b a c b x a xb a -=++++++.3．))()()()()()((111144442222d c b a c d b d b c a d a c a b d c b a d c b a d c b a +++------=.4．∏∑≤<≤=----=nj i i jni innn nn nn n nna aa a a a a a a a a a a a a 1121222212222121)(111.5．设c b a ,,两两不等，证明0111333=c b a c ba 的充要条件是0=++cb a .参考答案一．单项选择题A D A C C D ABCD B B 二．填空题1.n ;2.”“-;3.43312214a a a a ;4.0;5.0;6.!)1(1n n --;7.1)1(212)1()1(n n n n n a a a ---; 8.M 3-; 9.160-; 10.4x ; 11.1)(-+n n λλ; 12.2-;13.0; 14.0; 15.9,12-; 16.)11(!1∑=-nk k n ; 17.3,2-≠k ; 18.7=k三．计算题1．))()()()()()((c d b d b c a d a c a b d c b a ------+++-； 2. )(233y x +-； 3. 1,0,2-=x ; 4.∏-=-11)(n k kax5.)111()1(00∑∏==-+-nk k nk k a a ; 6. ))2(()1)(2(b n b b ---+- ;7. ∏=--nk k kna b1)()1(; 8. ∏∑==-+nk k nk k a x a x 11)()(;9. ∑=+nk k x 11; 10. 1+n ;11. )1)(1(42a a a ++-. 四. 证明题 (略)第二章 矩阵一、单项选择题1. A 、B 为n 阶方阵，则下列各式中成立的是( )。
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单项填空相似题集2014-8-91. She was washing the windows, most of hadn’t been cleaned at least a year. C② She was washing the windows, and most of hadn’t been cleaned at least a year. A③ She was washing the windows; most of hadn’t been cleaned at least a year. AA. themB. thatC. whichD. what2. is well known to all, the earth is round. D②is well known to all that the earth is round. C③is well known to all is that the earth is round. AA. WhatB. WhichC. ItD. As3. It’s good you to take a walk after supper every day. C②It’s good you to help him out of trouble. A (good: nice)A. ofB. toC. forD. at4. He is unfit for the job, ? A②He isn’t fit for the job, ? BA. isn’t heB. is heC. doesn’t heD. does he5. Is this museum you visited the other day? D②Is this the museum you visited the other day? A③Is this the museum you went the other day? BA. thatB. whereC. in whichD. the one6. There are many trees on side of the street. D②There are many trees on sides of the street. B③There are many students watching the volleyball match on side of the playground. CA. allB. bothC. everyD. either7. Mr Johnson must have come back yesterday, ? D②He must have waited here for a long time, ? AA. hasn’t heB. haven’t heC. mustn’t heD. didn’t he8. —can the work be done? — In five hours. B②—have you studied English? — For six years. AA. How longB. How soonC. How oftenD. How far9. Shall we have her there? B②Shall we get her there? AA. to goB. goC. wentD. gone10. The workers made machines the farmers. B② The officer made his men the farmers. AA. helpB. to helpC. helpedD. helping11. Our teacher entered the classroom, . B/C②Our teacher entered the classroom, with . CA. a book in handB. book in handC. a book in his handD. book in his hands12. many times, but he still couldn’t understand it. C②many times, he has already known how to do it. AA. Having been toldB. Having toldC. He had been toldD. Though he had been told13. , we all went to the park. D②, and we all went to the park. CA. Being a fine dayB. Because the fine dayC. It was a fine dayD. It being a fine day14. these pictures, I couldn’t help thinking of those days when I was in London. A②from the top of a thirty-storeyed building, London looks magnificent (宏伟的). CA. SeeingB. To seeC. SeenD. Saw15. The question now at the meeting is very important. C② The question at the meeting last week is very important. DA. discussingB. to be discussedC. being discussedD. discussed16. you need more practice is clear. D②we need is more time. AA. WhatB. WhenC. WhichD. That17. Do you know John is getting on well with his studies? D② Do you know John is getting on with his studies? AA. howB. whenC. whatD. that18. Three years later he turned doctor. C② Three years later he became doctor. BA. anB. aC. /D. the19. She often goes to school bike. D② She often goes to school my bike. CA. inB. atC. onD. by20. — How much money do you have? —. A②— How many people are there in the room? —. A③— Who is in the room? —. B④— What are you doing now? —. C⑤I went to every bookshop, but of them had the book I wanted. A⑥— Do you have the Harry Potter books by JK Rowling in your shop? A— Sorry, there is _______ left at the moment.A. None/noneB. No/no oneC. Nothing/nothingD. /21. Your composition is well written some spelling mistakes. D②She goes to school every day Sunday. BA. besidesB. exceptC. besideD. except for22. This kind of fruit is sugar and water. A②What interested you at the exhibition is the iceboat. CA. mostlyB. bestC. mostD. almost23. It was such a good film I saw it yesterday. B②Don’t talk ab out such things you don’t understand. DA. whichB. thatC. as toD. as24. on the stone, you will see farther. D②on the stone, and you will see farther. AA. StandB. To standC. StoodD. Standing25. — Shall we go with her this afternoon? —. D②— Excuse me for coming in without being asked. —. CA. Not all rightB. That’s rightC. That’s all rightD. All right26. The workers a new hospital since the end of last year. B② The workers a new hospital by the end of last year. CA. have builtB. have been buildingC. had builtD. were building27. Be careful; many mistakes in your composition. A② Be careful many mistakes in your composition. DA. don’t makeB. not makeC. not makingD. not to make28. The headmaster , there have been sixty people on the ground. B② Fifteen persons were present, the chairman. DA. being includingB. includedC. includesD. including29. I saw him at the back of the classroom. B② I saw him himself at the back of the classroom. DA. satB. seatedC. being seatedD. seating30. I found her eyes on the hole in the ceiling. B② I found her her eyes on the hole in the ceiling. CA. are fixedB. fixedC. fixingD. being fixed31.①The number 5.12 is a special number, ______ I think, that will be remembered by theChinese forever. D②The number 5.12 is a special number, ______ I think, will be remembered by the Chineseforever. CA. whatB. itC. whichD. one32.①I have reached a point in my life I am supposed to make decisions of my own. B②Remember that there is still one point ______ we must make clear at the conferencetomorrow. AA. thatB. whereC. howD. why33. We expect more discussion about this.A. there to beB. there beingC. there hasD. there to have34. It is not convenient to do the shopping here. Everyone is looking forward to a supermarket soon.A. there to beB. there beingC. there will beD. there be35. You could get into a situation you have to decide immediately.A. whyB. whereC. whichD. that36. What if we meet with a situation none of us are able to deal with?A. whereB. in whichC. whatD. that37. As all flights because of the snowstorm, many passengers could do nothing but take the train. AWith all flights because of the snowstorm, many passengers could do nothing but take the train. CA. had been cancelledB. have been cancelledC. having been cancelledD. being cancelled38. — Can those at the back of the classroom hear me?— No problem. C— Can those who at the back of the classroom hear me?— No problem. BA. seatB. sitC. seatedD. sat39. an important decision more on emotion than on reason, you will regret it sooner or later. Ban important decision more on emotion than on reason, and you will regret it sooneror later. CA. BasedB. BasingC. BaseD. To base40. what has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem. Csomething has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem. DA. AsB. RegardlessC. In spite ofD. Though。