西南交大网络教育习题2012届大学英语主观题答案
My Favorite Teacher
My favorite teacher is my English teacher, her name is Mrs. Zhang. She's very pretty and very nice to us. She has long hair and big brown eyes. Not like other teachers, she always tries to make friends with the students. She smiles all the time. Her class is very interesting. She often plays games with us. She likes reading and drawing. In the class, when we have all kinds of different questions, she can answer with enough patients. I like her very much!
Hard To Learn English
A lot of students have such similar thought that it is hard to learn English. There is no doubt that we are native Chinese. We don't have superior conditions to learn English. The study of one language needs not only diligence but also good ways. For instance, the way to keep the new words in mind, the way to recite the common phase and make sure you will never forget them. But just remember to have confidence in yourself, you can make it.
My Hometown
Bole City is not only the city where I was born,but also the only place with long history and picturesque scenery. Bole is a multi-ethnic gathering area.In the long historical development process,the national mutual Learn from each other. Form a distinctive regional culture and customs. The lake of Sailimu In the territory of Bole is Scenic Area. Bole has Strong ultraviolet rays, so,I have black skin. I love Bole city which is my hometown so much.
My family
I have a happy family. There are seven people in my family. They are my parents, my grandparents, my two old sister and I. My father and mother are businessmen. And my grandparents are farmers. One of my old sister is hydraulic engineer ,and the other is kindergarten teacher. I'm a railway man. Every weekend we cook nice food in our house,and we talk each other about every thing. I'm the youngest, so my family love me very much, and I love my family too.
Physical exercise
Everyone hopes to live happily in the world. Physical exercise is indispensable to a happy life. There is a famous saying: "Life lies on exercise." Although you will not necessarily die without regular physical exercises, they will certainly help you live longer and more healthily. Exercise can also contribute to improving our mood. When you do exercise,you move a lot,and you have to be more active. It helps you become more optimistic. I like to play football and Play basketball. Exercise is helpful,important and absolutely necessary.
西南交大交通运输系统分析离线作业
交通运输系统分析第一次作业 三、主观题(共12道小题) 41.开放系统 答：系统与外界环境之间有物质、能量、信息交换的系统称为开放系统． 42.请举出一个系统的实例，并分析其目的、要素集、关系、结构和环境． 答：（主观题，自行举例即可） 43.系统的目标集中若出现相互矛盾的情况，应当怎样处理？请举例说明． 答：分目标之间可能是矛盾的，因此采用某种形式的折衷是必要的，即在矛盾的分目标之间寻求平衡．具体的做法是通过计算每个分目标对总目标的贡献来确定最佳的妥协． （自行举例既可） 44.切克兰德软系统方法论的步骤是什么？ 答： （1）系统现状说明 通过调查分析，对现存的不良结构系统的现状进行说明． （2）弄清关联因素 初步弄清与现状有关的各种因素及其相互关系． （3）建立概念模型 在不能建立数学模型的情况下，用结构模型或语言模型来描述系统的现状．（4）改善概念模型 随着分析的不断深入和“学习”的加深，进一步用更合适的模型或方法改进上述概念模型． （5）比较 将概念模型与现状进行比较，找出符合决策者意图而且可行的改革途径或方案．（6）实施 实施所提出的改革方案． 45.交通运输系统的作业特征是什么？ 答： （1）交通运输系统是一个连续过程系统； （2）交通运输系统生产的多环节、多功能、超区域的特点； （3）交通运输系统生产具有网络性特点； （4）交通运输系统是一个动态系统． 46.怎样理解交通运输系统的网络性？ 答：交通运输生产不仅仅是列车、车辆在轨道、道路上移动，而且在交通运输网（包括铁路网、公路网、水运网、航空网等）上运动．良好的交通运输系统首先要有合理的布局与结构，要建设成与内部、外部协调的交通运输网．在具有科学
全国高校网络教育大学英语统考(B)试题及答案(1)
全国高校网络教育大学英语统考（B）试题及答案(1) Part I 日常会话 1. – Hello, may I talk to the headmaster now?-- A. Sorry, he is busy at the moment B. No, you can’t C. Sorry, you can’t D. I don’t know 2. -- Do you think I could borrow your dictionary?-- A. Yes, you may borrow B. Yes, go on C. Yes, help yourself D. It doesn’t matter 3. -- Is that Mr Robert Lee?-- A. Yes, Lee speaking. B. Hello, what do you want? C. Sorry, speaking. D. I don’t know. 4. –Excuse me, sir. Where is Dr. Brown’s office?-- A. You can’t ask me B. Pardon? I have no idea C. Please don’t say so D. Sorry, I don’t know, but you can ask the man over there 5. – Mary, your dress is really beautiful. How is John?-- A. Thank you very much B. No, no, John is not bad C. Thank you. He is fine D. Don’t say that. It’s ugly. John is good 6. – What can I do for you, madam?-- . A. I want a kilo of apples B. You can go your own way C. Thanks D. Excuse me. I’m busy 7. –I’d like to take you to the coffee house on t he corner.- A. Thank you. You shouldn’t do that B. Thanks, I’d like to go with you C. No, you can’t say so D. No, no. You can’t do that 8. –Do you mind telling me where you’re from?-- A. Certainly. I’m from London B. Sure. I was b orn in London C. Not really, you can do it D. Certainly not. I’m from London 9. – May I see the menu, please?-- A. That is the menu, sir. B. Yes, please go on. C. Here you are, sir. D. Of course, sir. 10. – I was worried about chemistry, but Mr Brown gave me an A !-- . A. Don’t worry about it B. Congratulations! That’s a difficult course C.Mr Brown is very good D. Good luck to you! 1. – Would you like to have dinner with us this evening?-- A. OK, but I have to go to a meeting now B. No, I can’t C. I’d love to, but this evening I have to go to the airport to meet my parents D. I don’t know 2. – Hi, is Mary there, please?-- A. Hold on. I’ll get her. B. No, she isn’t here. C. Yes, she lives here. D. Yes, what do you want? 3. – Please help yourself to the fish.-- . A. Thanks, but fish doesn’t agree with me B. Sorry, I can’t help C. I don’t like fish D. No, I can’t 4. –Hurry up, please, or I’ll be late.-- . A. Sorry sir, but the traffic is thick now B. Well, it’s alright, sir C. How can you say that, sir? D. Oh, we are going the right way
新视野大学英语翻译答案
汉译英 Unit1 1.无论你是多么富有经验的演说家，无论你做了多么充足的准备，你都很难在这样嘈杂的招待会上发表演讲。（no matter how） No matter how experienced a speaker you are, and how well you have prepared your speech ，you will have difficulty making a speech at such a noisy reception. 2.就像吉米妹妹的朋友都关系吉米一样，吉米也关系他们（just as） Just as all his sister ’ s friends cared about him, Jimmy cared about them 3.汽车生产商在新车的几处都印有汽车识别号码，以便帮助找回被盗的车辆。（track down）Car manufacturers stamp a vehicle identification number at several places on new cars to help track down stolen vehicles. 4.老师回来时你敢告我状的话，我就不再和你说话了。（tell on） If you dare tell on me when the teacher gets back I won’t say a word to you any more. 5.有些老年人愿意独自过日子，但大多数老人选择和儿女一起生活。（on one’s own） Some elderly people prefer to live on their own while the great majority choose to live with their children. 6.现在需要面对的事情是：如何筹集创建公司所需的资金。（reckon with） Here is something that needs to be reckoned with: how to get the necessary finances to establish the company. Unit2 1.被告是位年仅30岁的女子，她坚持称自己无罪 The defendant, a woman of only 30, kept insisting on her own innocence. 2.总体看来，枣、豆类以及一些多叶的绿色蔬菜是最好的铁质来源。 All tings considered, dates, beans and some leafy green vegetables are the best sources of iron . 3正餐时不供应饮料，饮料会影响消化。 No beverages are served with meals because they interfere with digestion. 4.考虑到那个地区受欢迎的程度，提前订旅馆是明智的。 Taking the popularity of the region into consideration, it is advisable to book hotels in advance. 5.服药后若有呕吐感，请立即停止服用并立刻咨询医生。 If you have a feeling of wanting to throw up after taking this drug, stop taking it immediately and consult your doctors as soon as possible. 6.总结这次讨论时，他说双方都要好好考虑怎样以最有效的方法来解决这一问题。 Summing up the discussion, he said both parties should consider the most effective way to solve the problem. Unit3 1.在思维方面，与他的行为一样，他是非常传统的。 In his thinking, as in his behavior, he is very traditional. 2..教师一旦同意接受新的教学计划，他们就得面对新计划所带给他们的压力。 Once the teachers agree to accept the new teaching program, they have to face the strain it puts on them. 3.从长远看，大学毕业后继续深造而不是直接参加工作是值得的。 In the long run, it is worthwhile to pursue one ’ s study after graduatin g from university instead of going to work directly. 4.由于这所学校的办学宗旨是品德第一，所以道德观和学习成绩受到同样的重视。 As the school operates on the Character First principle, moral values and academic achievements are stressed equally. 5.据说，原定于这个月召开的会议将推迟到下个月召开。
西南交大远程教育之数字电路
第一次 15.试根据真值表给出输入输出（输入为AB 输出为Y）的逻辑关系，在表内的空格处填上相应逻辑门的名称。 答：或非、与、异或、或 16.二进制计算：0011+1011= ，1100 –0101= 。 答：10100（最高位是进位）、11111（最高位是借位） 17.逻辑函数的最小项之和表达式= =∑m（），其最简与-或表达式为。 答：，∑m(1,3,4,5)， 18.n个变量的逻辑函数有________个最小项，任意两个最小项的乘积为_________，所有最小项之和为_________。 答：2n 、0、1 19.用卡诺图法化简下列各式 （1） （2） （3） （4） （5） 答： 解：（1） （2） （3）
（4） （5） 第二次 6.求出图4.6（a）、（b）所示电路输出F的逻辑表达式。 图4.6（a）图4.6（b） 答： ．解：图4.6(a)的输出逻辑表达式： 图4.6(b)的输出逻辑表达式： 7.写出图4.7所示电路输出F的逻辑表达式。 答： 解：图4.7的输出逻辑表达式： 8.试用8-1数据选择器74151组成三输入信号的奇偶校验电路。当输入信号中1的个数为偶数时，输出为1，否则输出为0。设输入为 A、B、C，输出为F。要求完成以下各项: （1）列出真值表；（2）写出函数表达式；（3）画出逻辑电路图。 答： 解：（1
0 0 0 1 0 0 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 1 1 1 0 1 1 1 1 0 74151 E 1 F （2）输出逻辑表达式： （3）电路图 9.试设计一个监视交通信号灯工作状态，逻辑电路正常工作时，任何时刻必须有一盏灯亮，而其他情况均为电路发生故障，这时要求能发出故障信号。用1个3-8译码器74138和必要的门实现，画出逻辑电路图。 答： 解：设R,Y,G分别表示红,黄,绿三个灯的状态，为1时表示灯亮； F为输出的故障信号，电路发生故障时F=1，否则F=0。 R Y G F 0 0 0 1 0 0 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 1 1 1 0 1 1 1 1 1 输出函数表达式为： 将R,Y,G分别接74138的A2,A1,A0，则:
大学物理(西南交大)作业参考答案5
NO.5 电势、导体与※电介质中的静电场 （参考答案） 班级： 学号： 姓名： 成绩： 一 选择题 1．真空中一半径为R 的球面均匀带电Q ，在球心O 处有一带电量为q 的点电荷，如图所示，设无穷远处为电势零点，则在球内离球心O 距离为r 的P 点处的电势为： （A ）r q 04πε； （B ）(041 R Q r q +πε； （C ）r Q q 04πε+； （D ）)(0 41 R q Q r q -+ πε； 参考：电势叠加原理。 [ B ] 2．在带电量为-Q 的点电荷A 的静电场中，将另一 带电量为q 的点电荷B 从a 点移动到b ，a 、b 两点距离点电荷A 的距离分别为r 1和r 2，如图，则移动过程中电场力做功为： （A ）(2 101 1Q --； （B ）(2 101 14r r qQ -πε； （C ） )(2 1 114r r qQ --πε； （D ） ) (4120r r qQ --πε。 参考：电场力做功＝势能的减小量。A=W a -W b ＝q(U a -U b ) 。 [ C ] 3．某电场的电力线分布情况如图所示，一负电荷从M 点移到N 点，有人根据这个图做出以下几点结论，其中哪点是正确的？ （A ）电场强度E M ＜E N ； （B ）电势U M ＜U N ； （C ）电势能W M ＜W N ； （D ）电场力的功A ＞0。 [ C ] 4．一个未带电的空腔导体球壳内半径为R ，在腔内离球心距离为d （d ＜R ）处，固定一电量为+q 的点电荷，用导线把球壳接地后，再把地线撤去，选无穷远处为电势零点，则球心O 处的点势为： （A ）0； （B ）d q 4πε； （C ）-R q 04πε； （D ）)(1 1 40 R d q - πε。 参考：如图，先用高斯定理可知导体内表面电荷为-q ，外表面无电荷（可分析）。虽然内表面电荷分布不均，但到O 点的距离相同，故由电势叠加原理可得。 [ D ] ※5．在半径为R 的球的介质球心处有电荷+Q ，在球面上均匀分布电荷-Q ，则在球内外处的电势分别为： （A ）内r Q πε4+，外r Q 04πε-； （B ）内r Q πε4+，0； 参考：电势叠加原理。注：原题中ε为ε0 （C ）R Q r Q πεπε44-+内 ，0； （D ）0，0 。 [ C ] r 2 (-Q)A b r 1 B a （q ）
全国高校网络教育大学英语统考(B)试题及答案
全国高校网络教育大学英语统考 （B ）试题及答案 Test 1 Part I 日常会话 1. — Hello, may I talk to the headmaster now -- A A. Sorry, he is busy at the mome nt C. Sorry, you can ' t 2. -- Do you think I could borrow your dictionary -- .C A. Yes, you may borrow C. Yes, help yourself 3. -- Is that Mr Robert Lee -- A A. Yes, Lee speak ing. C. Sorry, speak ing. 4. — Excuse me, sir. Where is Dr. Brow n - D. A. You can ' t ask me B. Pard on I have no idea C. Please don ' t say so D. Sorry, I don ' t know, but you can ask the man over there 5. - Mary, your dress is really beautiful. How is John -- .C A. Thank you very much C. Thank you. He is fine is good 6. - What can I do for you, madam -- .A A. I want a kilo of apples C. Thanks B. No, you can ' t D. I don ' t know B. Yes, go on D. It doesn ' t matter B. Hello, what do you want D. I don ' t know. 's office I ' d like to take you to the coffee house on the corner. B. You can go your own way D. Excuse me. I ' m busy
新视野大学英语第三版第一册课后翻译答案.doc
新视野大学第三版book1英语课后翻译答案 Unit1 苏格拉底是古希腊哲学家，被誉为现代西方哲学的奠基人。他是一个谜一般的人物，人们主要通过后来的一些古典作家的叙述，尤其是他最著名的学生柏拉图的作品去了解他。苏格拉底以他对伦理学的贡献而闻名。他的教学法亦称为苏格拉底法，即通过提问和回答来激发批判性思维以及阐述观点。该方法在各种讨论中仍被普遍使用。他还在认识论和逻辑领域作出了重大而深远的贡献。他的思想和方法所带来的影响一直是后来的西方哲学的坚实基础。苏格拉底是古代哲学史上最丰富多彩的人物。他在他那个时代已威名远扬。虽然他未曾建立什么哲学体系，未曾设立什么学派，也未曾创立什么宗派，但他的名字很快就变得家喻户晓了。 Confucius was a great thinker and educator in Chinese history. He was the founder of Confucianism and was respectfully referred to as an ancient “sage”. His words and life story were recorded in The Analects. An enduring classic of ancient Chinese culture, The Analectshas had a great influence on the thinkers, writers, and statesmen that came after Confucius. Without studying this book, one could hardly truly understand the thousands-of-years’traditional Chinese culture. Much of Confucius’thought, especially his thought on education, has had a profound influence on Chinese society. In the 21st century, Confucian thought not only retains the attention of the Chinese, but it also wins an increasing attention from the international community. Unit2 圣诞节是一个被广泛庆祝的文化节日，全世界有许许多多的人在12月25日庆祝这一节日。它是为了纪念耶稣基督的诞辰。该节日最早可追溯到公元336年。渐渐地，这一节日演变为一个既是宗教又是非宗教的节日，越来越多的非基督徒也庆祝圣诞节。如今，圣诞节在全球被作为一个重大的节日和公共假日来庆祝。不同国家的圣诞节风俗也各不相同。现代流行的圣诞接风俗包括交换圣诞贺卡和圣诞礼物、唱圣诞歌曲、参加教堂活动、摆放各种圣诞装饰品和圣诞树、举行家庭聚会以及准备一顿特别的大餐。对小孩子们来说，这个节日充满了幻想和惊喜。据传说，圣诞老人会在圣诞夜从烟囱进入每户人家，给乖巧听话的孩子带来礼物。由于圣诞节送礼物以及许多其他方面推动了基督徒和非基督徒的经济活动，圣诞节也因此成为商家的一个重大活动和主要销售季。 According to the Chinese lunar calendar, August 15 of every year is a traditional Chinese festival-the Mid-Autumn Festival. This day is the middle of autumn, so it is called Mid-Autumn. One of the important Mid-Autumn Festival activities is to enjoy the moon. On that night, people gather together to celebrate the Mid-Autumn Festival, looking up at the bright moon and eating moon cakes. The festival is also a time for family reunion. People living far away from home will express their feelings of missing their hometowns and families at this festival, all expressing people’s love and hope for a happy life. Since 2008, the Mid-Autumn Festival has become an official national holiday in China.
房屋建筑学(西南交大)离线作业
21.墙体设计要求有哪些？ 22.提高墙体的热阻的措施有哪些 23.墙体的隔热措施有哪些 24.实体砖墙的组砌方式主要有哪几种 25.普通粘土砖墙的砖模尺寸与建筑模数是否一致？如何协调二者关系 26.勒脚的作用是什么？常用的做法有哪几种 27.墙身防潮层的作用是什么？水平防潮层的位置如何确定？什么请款下须设垂直发防潮层 28.墙身防潮层的作用是什么？水平防潮层的位置如何确定？什么请款下须设垂直发防潮层
29.窗洞口上部过梁的常用做法有哪几种，各自的适用范围如何 30.砖砌平拱过梁的构造要点是什么 31.圈梁的作用有哪些？设置原则主要有哪些 32.构造柱的作用及加设原则是什么？ 33.构造柱的构造要点有哪些 ? 34.简述墙体三种变形缝的异同 35.简述 1/2 砖隔墙构造要点。 36.简述加气混凝土砌块隔墙构造要点 37.墙面装修的作用是什么 ? 38.什么是抹灰类墙面装修？有哪些构造层次？简单介绍各构造层次的作用与做法
39.什么是贴面类装修？常见贴面类装修有哪些？ 40.什么是涂料类墙面装修？涂料施涂方法有哪些？ 17.楼梯的作用及设计要求有哪些 18.楼梯主要由哪些部分组成？各部分的作用和要求是什么？ 19.楼梯坡度的表达方式有那些？ 20.当楼梯底层中间平台下做通道而平台净高不满足要求时，常采取哪些办法解决？ 21.现浇钢筋混凝土楼梯有哪几种结构形式？各有何特点 22.预制踏步有哪几种断面形式和支承方式？
23.栏杆扶手在平行楼梯的平台转弯处如何处理？ 24.室外台阶的构造要求是什么？通常有哪些做法。 25.电梯井道的构造要求有哪些？ 26.简述楼梯的设计步骤。 27.< 影响基础埋置深度的因素有哪些？ 28.基础按构造形式不同分为哪几种？各自的适用范围如何？ 29.确定地下室防潮或防水的依据是什么？ 30.地下室卷材外防水的层数是如何确定的？ 21. 现浇钢筋混凝土楼板的特点和适用范围是什么
网络教育大学英语B统考题库
第一部分交际英语 ……………………………………………………………………………………………………….. ----------------以下红色1-60重点掌握看，可得分值9-12分----------------- 1.-Are you going on holiday for a long time?你度假很长时间吗？ -- ____C____ 不是，只是几天。 A. It was a long time B. Two weeks ago. C. No. Only a couple of days. D Not long time ago. 2.-Could you help me with my physics, please? 请问你能帮我做物理课作业吗？ -___D___.很抱歉不行。我马上要去开会。（表示歉意要婉转，不能直接说NO 还应加理由）A. No, no way B. No, I couldn’t C. No, I can’t D. Sorry I can’t. I have to go to a meeting right now 3.-Could I speak to Don Watkins, please? 我能和Don Watkins说话吗？ - ___A___ 我就是。 A. Speaking, please. B. Oh, how are you? C. I’m listening. D. I’m Don. 4.-Could I borrow your car for a few day? 我能借你的车用几天吗？ -____C____.当然可以。给你。祝你旅途愉快。 A. Yes, you may borrow B. Yes, go on C. Sure, here is the key. Enjoy your journey D. It doesn’t matter 5.-Congratulations!You won the first prize in today’s speech contest. -___C___. 祝贺你在今天的演讲比赛中获得冠军。--谢谢你。 A. Yes, I beat the others B. No, no, I didn’t do it w ell C. Thank you D. It’s pleasure 6.-Do you mind my smoking here? 你介意我在这吸烟吗？（介意询问时，YES是表示介意）-_____B____.是的，我介意 A. No, thanks B. Yes, I do C. Yes, I’d rather not D. Good idea 7.- Did you know that David injured his leg yesterday?你知道戴维昨天弄伤了他的腿吗？ - Really? ____C___真的吗？发生了什么事？ A、Who did that? B、What's wrong with him? C、How did that happen? D、Why was he so careless? 8.-Excuse me, how much is the jacket?请问，这件夹克衫多少钱？ -It’s 499 Yuan. ____D____. 499元。你想试一下吗？ A. Oh, no. That’s OK! B. How do you like it? C. Which do you prefer? D. Would you like to try it on? 9.-Excuse me, could you show me the way to the nearest post office? 打扰下，你能告诉我最近的邮局怎么走吗？ - ___D___Oh yes! Two blocks away from here at the Green Avenue. You can’t miss it. 噢，我想下！从这里过两个街区，在格林大街，你不会错过 A. I beg your pardon? B. What do you m ean? C. You’re welcome. D. Um,let me think. 10.-How are you, Bob?你好吗，鲍勃？-____B____, Ted.我很好，谢谢。
西南交大网络教育学院《高电压技术》第1~4次作业
《高电压技术》第1~4次作业 本次作业是本门课程本学期的第1次作业，注释如下： 一、单项选择题(只有一个选项正确，共10道小题) 1. 国际电工委员会（IEC）和我国国家标准规定，标准雷电冲击电压波为：________。 (A) 1.2/50μs (B) 1.2/2～5μs (C) 100/2500μs (D) 500/2500μs 你选择的答案： A [正确] 正确答案：A 解答参考： 2. 流注理论未考虑的现象。 (A) 碰撞电离 (B) 表面电离 (C) 光电离 (D) 空间电荷对电场的影响 正确答案：B 解答参考： 3. 稍不均匀电场中不可能存在稳定的电晕放电，一旦出现局部放电，即导致整个气隙的击穿，它的冲击系数。 (A) 远大于1 (B) 约等于1 (C) 远小于1 (D) 不确定 正确答案：B 解答参考： 4. 任何电介质都不同程度地具有一定的导电性能，表征电介质导电性能的主要物理量是。 (A) 介电常数 (B) 电导率
(C) 介质损耗 (D) 击穿电场强度 正确答案：B 解答参考： 5. 局部放电的监测方法中，不属于非电监测方法的是。 (A) 噪声检测法 (B) 介质损耗法 (C) 光检测法 (D) 化学分析法 你选择的答案： B [正确] 正确答案：B 解答参考： 6. 随着输电线路长度的增加线路的波阻抗将。 (A) 不变 (B) 增大 (C) 减小 (D) 可能增大也可能减小 你选择的答案： A [正确] 正确答案：A 解答参考： 7. 波在线路上传播，当末端短路（接地）时，以下关于反射描述正确的是。 (A) 电流为0，电压增大一倍 (B) 电压为0，电流增大一倍 (C) 电流不变，电压增大一倍 (D) 电压不变，电流增大一倍 正确答案：B 解答参考： 8. 220kV输电线路应有的耐雷水平是_________。 (A) 20～30kA
第一学期西南交大理论力学C第1次作业答案
本次作业是本门课程本学期的第1次作业，注释如下： 一、单项选择题(只有一个选项正确，共26道小题) 1. 考虑力对物体作用的运动效应和变形效应，力是。 (A) 滑动矢量 (B) 自由矢量 (C) 定位矢量 正确答案：C 解答参考： 2. 考虑力对物体作用的运动效应，力是。 (A) 滑动矢量 (B) 自由矢量 (C) 定位矢量 正确答案：A 解答参考： 3. 图示中的两个力，则刚体处于。 (A) 平衡 (B) 不平衡 (C) 不能确定 你选择的答案：[前面作业中已经做正确] [正确] 正确答案：B 解答参考： 4.
作用力的大小等于100N，则其反作用力的大小为。 (A) (B) (C) 不能确定 你选择的答案：[前面作业中已经做正确] [正确] 正确答案：B 解答参考： 5. 力的可传性原理只适用于。 (A) 刚体 (B) 变形体 (C) 刚体和变形体 你选择的答案：[前面作业中已经做正确] [正确] 正确答案：A 解答参考： 6. 图示结构，各杆自重不计，则杆BC是。
(A) 二力杆 (B) 不能确定 你选择的答案：[前面作业中已经做正确] [正确] 正确答案：A 解答参考： 7. 图示作用于三角架的杆AB中点处的铅垂力如果沿其作用线移动到杆BC的中点，那么A、C处支座的约束力的方向。 (A) 不改变 (B) 改变 (C) 不能确定 你选择的答案：[前面作业中已经做正确] [正确] 正确答案：B 解答参考： 8.
图示构架ABC中，力作用在销钉C上，则销钉C对杆AC的作用力与销钉C对杆B C的作用力。 (A) 等值、反向、共线 (B) 分别沿AC和BC (C) 不能确定 你选择的答案：[前面作业中已经做正确] [正确] 正确答案：B 解答参考： 9. 如图所示，物体处于平衡，，自重不计，接触处是光滑的，图中所画受力图。 (A) 正确 (B) 不正确
新视野大学英语课后习题翻译答案
新视野大学英语（第二版）读写教程2 1至7单元课后翻译答案总结 IA：她连水都不愿意喝一口，更别提留下来吃饭了。 She wouldn’t take a drink , much less would she stay for dinner. 他认为我在对他说谎，但实际上我讲的是实话。 He thought I was lying to him , whereas I was telling the truth. 这个星期你每天都迟到，对此你怎样解释? How do you account for the fact you have been late every day this week？ 他们利润增长的部分原因是采用了新的市场策略。 The increase in their profits is due to their new market strategy. 这样的措施很可能会带来工作效率得提高。 Such measures are likely to result in the improvement of work efficiency. 我们已经在这个项目上投入了大量时间和精力，所以我们只能继续。 We have already poured a lot of time and energy into the project , so we have to carry on. IIA: 尽管她是家里的独生女，他父母也从不溺爱她。 Despite the fact that she is the only child in the family , her parents never baby her .
西南交大网络教育《大学英语Ⅲ》主观题离线作业(打印)
Directions: For this part, you are allowed 30 minutes to write a composition on the topic “How to Keep Healthy”. You should write no less than 80 words.
Directions: For this part, you are allowed 30 minutes to write a composition on the topic “My Favorite Season”. You should write no less than 80 words.
Directions: For this part, you are allowed 30 minutes to write a composition on the topic “Private Cars”. You should write no less than 80 words.
Directions: For this part, you are allowed 30 minutes to write a composition on the topic “A City to Remember”. You should write no less than 80 words.
Directions: For this part, you are allowed 30 minutes to write a composition on the topic “Online Shopping”. You should write no less than 80 words.
(完整版)大学英语翻译答案-1
大学英语（B）1翻译练习参考译文 1、元宵节是春节后的第一个重要节日。元宵节的习俗在全国各地不尽相同，其 中赏花灯（lanterns exhibits）、猜灯谜、吃元宵等是几项最常见的民间习俗。据说， 吃元宵的习俗起源于汉代，唐宋时期开始盛行。如今，元宵已成为人们的日常饮 食之一，在超市一年四季都可以买到。 The Yuanxiao Festival is the first important festival after the Spring Festival. Although customs of the festival vary from region to region, the most common ones include appreciating lantern exhibits, trying to solve riddles written on lanterns, and eating yuanxiao. It is said that the custom of eating yuanxiao originated from the Han Dynasty and became popular during the Tang and Song periods. Nowadays, yuanxiao has become a food in people’s daily life, which is available in supermarkets a ll the year round. 8、如今，越来越多的大学生抱怨很难找到好的工作。造成这一现象的原因如下： 首先，大学生把在校的大多数时间都用在了专业学科的学习上，只有当他们开始 找工作的时候，才意识到自己缺乏必要的专业培训。其次，大学生之间的竞争也 越来越激烈，这导致任何一名大学生找到工作的机会都变小了。 Nowadays, more and more university students complain about having great difficulties in finding a good job. The reasons f or this phenomenon are as follows: First, college students spend most of their time at school studying academic subjects and it is only when they start looking for a job that they realize they lack necessary job training. Second, competition among graduates has become more and more fierce. And this results in a decreased chance for any individual graduate to find a job. 7、杭州是中国著名的六大古都之一，已有两千多年的历史。这个城市不仅以自 然美闻名于世，而且有着传统的文化魅力。不仅有历代文人墨客（men of letters） 的题咏，而且有美味佳肴和漂亮的工艺品。一般来说，游览杭州西湖及其周边景 点花上两天较为合适。到杭州旅游，既令人愉快，又能得到文化享受。 Hangzhou, one of China’s six ancient capital cities, has a history of more than 2,000 years. It is famous not only for its natural beauty but also for its charm of cultural traditions. Besides many poems and inscriptions by men of letters through the dynasties, it also boasts local delicacies and pretty handicrafts. Generally speaking, a two-day tour of West Lake and scenic spots around it is advisable for a tourist. As a tourist, you will find it a pleasant and culturally rewarding trip to Hangzhou. 6、说到中国古代的科技文明（civilization），人们自然就会想到“四大发明”，即 指南针、火药、造纸术和印刷术。这四种发明是古代先进科技的象征，具有重大 的历史意义。它们对中国古代政治、经济、文化的发展产生了巨大的推动作用， 也对世界的文明进程产生了巨大影响。 Speaking of ancient Chinese civilization in science and technology, people will naturally think of the Four Great Inventions, namely the compass, gunpowder, paper-making and printing. These four inventions are symbols of ancient China’s