【导语】“亮丽青春”通过精心收集，向本站投稿了7篇浙江1月自学考试《经贸英语》历年真题，下面就是小编整理后的浙江1月自学考试《经贸英语》历年真题，希望大家喜欢。
- 目录
篇1：浙江1月自学考试《经贸英语》历年真题
非选择题部分
注意事项：
用黑色字迹的签字笔或钢笔将答案写在答题纸上，不能答在试题卷上。
III.Put the following phrases into Chinese.(10%)
31.natural resources Www.KaO8.CC
32.import restrictions
33.desk research
34.OECD
35.Pilot Model
IV.Put the following phrases into English.(10%)
36.跨国公司
37.产品展示
38.出口标签
39.债券市场
40.扰乱市场
V.Translate the following sentences into English. (20%)
41.为了加入世界贸易组织，我们国家进行(carry out)了关税改革。
42.因特网使国际调查不仅变得容易得多而且廉价极了。
43.难以找到的数据信息现在只要动一下鼠标(at a click of a mouse)就能得到(become accessible)。
44.这种款式女裙的销售开始趋于平稳(level off)。
45.当他们行于山顶公路时夜幕降临了(set in)。
VI.Translate the following sentences into Chinese. (20%)
46.This company brings out a new product every half year.
47.His leg was badly injured and he had to withdraw from the race.
48.In all kinds of international business activities, English is the most widely used language.
49.In order to protect domestic car industry from the impact of foreign cars, the government put a high tax on the imported car.
50.Different languages represent different cultures and ways of thinking, so it’s valuable to protect them all.
篇2：浙江1月自学考试《经贸英语》历年真题
A. labor and equipment are two resources that can replace each other in a wide range.
B. capital is insufficient for them
C. China doesn’t lack in labor force.
D. both B and C.
24.Which of the following is not right?
A. For a manufacturing enterprise, labor and equipment are two resources that can replace each other in a wide range.
B. Private funding is the only way for Chinese enterprises to raise capital.
C. Capital is abundant in developed countries.
D. The labor cost in developed countries is very high.
25.The manufacturing process will be optimized because_______.
A. Chinese enterprises gradually enter the world market and enterprises from developed countries are also more and more involved in Chinese market.
B. Two markets are gradually merging and two kinds of enterprises begin to compete in the same market.
C. A real global market is forming and global manufacturing resources are being reorganized.
D. A,B and C .
Questions 26 to 30 are based on the following passage:
Amtrak (美国铁路客运公司) was experiencing a downswing in ridership(客运量) along the lines comprising its rail system. Of major concern to Amtrak and its advertising agency DDB Needham, were the long-distance western routes where ridership had been declining significantly.
At one time, trains were the only practical way to cross the vast areas of the west. Trains were fast, very luxurious, and quite convenient compared to other forms of transportation existing at the time. However, times change and the automobile became America’s standard of convenience. Also, air travel had easily established itself as the fastest method of traveling great distances. Therefore, the task for DDB Needham was to encourage consumers to consider other aspects of train travel in order to change their attitudes and increase the likelihood that trains would be considered for travel in the west.
Two portions of the total market were targeted: (1) anxious fliers―those concerned with safety, relaxation, and cleanliness and (2) travel-lovers―those viewing themselves as relaxed, casual, and interested in the travel experience as part of their vacation. The agency then developed a campaign that focused on travel experiences such as freedom, escape, relaxation, and enjoyment of the great western outdoors. It stressed experiences gained by using the trains and portrayed western train trips as wonderful adventures.
Advertisements showed pictures of the beautiful scenery that could be enjoyed along some of the more famous western routes and emphasized the romantic names of some of these trains (Empire Builder, etc.). These ads were strategically placed among family-oriented TV shows and programs involving nature and America in order to most effectively reach target audiences. Results were impressive. The Empire Builder, which was focused on in one ad, enjoyed a 15 percent increase in profits on its Chicago to Seattle route.
26.What’s the author’s purpose in writing this passage?
A. To show the inability of trains to compete with planes with respect to speed and convenience.
B. To stress the influence of the automobile on America’s standard of convenience.
C. To emphasize the function of travel agencies in market promotion.
D. To illustrate the important role of persuasive communication in changing consumer attitudes.
27.It can be inferred from the passage that the drop in Amtrak ridership was due to the fact that _______.
A. trains were not suitable for short distance passenger transportation
B. trains were not the fastest and most convenient form of transportation
C. trains were not as fast and convenient as they used to be
D. trains could not compete with planes in terms of luxury and convenience
28.To encourage consumers to travel by train, DDB Needham emphasized _______.
A. the freedom and convenience provided on trians
B. the practical aspects of train trips
C. the adventurous aspects of train trips
D. the safety and cleanliness of train trips
29.The train ads were placed among family-oriented TV programs involving nature and America because _______.
A. they could focus on meaningful travel experiences
B. they could increase the effectiveness of the TV programs
C. their profits could be increased by some 15 percent
D. most travel-lovers and nervous fliers were believed to be among the audiences
30.According to the passage, the Empire Builder enjoyed an increase in ridership and profits because _______.
A. the attractiveness of its name and route was effectively advertised
B. it provided an exciting travel experience
C. its passengers could enjoy the great western outdoors
D. it was widely advertised in newspapers and magazines in Chicago and Seatle
篇3：浙江1月自学考试《经贸英语》历年真题
注意事项：
1。
2。
I.Multiple
1，丈夫被认为_______“模范丈夫”。
A.for B.as
C.into D.of
2.In许多司法管辖区这一权利可以得到_______金钱赔偿不足以弥补一方当事人。
A.当B.whose的
C.where D.what
3，公司_______贸易与南非于1980年。
A.initial B.initiation
C.initiated D.initiate
4.In然而，最近的情况下，这类合同通常是regarded_______仅仅是可撤销的。
A.as B.to
，为了D.like的
5，合同可以肯定，那人_______实现全年龄。
A.on B.FOR
C.at D.in
6。电视剧_______的成功给予极高的评价。
A.led B.ensured
C.lost D.destroyed
7，制造商不会采取_______误操作带来的损坏。
A.duty B.responsibility
C.reliability D.reputation
8，老板等的不耐烦了，员工总是回答他的quesitons _______。
A.carelessly B.freely
C.bravely D.cautiously
9.Under _______，她不得不接受这份工作。
A.rules B.circumstances
C.occasion D.convention
10，公司_______其客户每半年一个新的目录。
A.formulates B.requires
C.forwards D.dispatch
11，货物的包装必须根据_______买方或买方不会使payment.Www.KaO8.CC的
A.instructions B.order
C.inspiration D.construction
12。我们已经降低了的数量_______ 800 _______ 400公斤。
A.at B.从
C.只，D.to的，从
13.For交易，出口商坚持_______ L / C付款
A.for B.on
C.at D.in
14._______what sum shall we open the letter of credit?
A.To B.At
C.Under D.For
15.They must find new markets _______their commodities.
A.for B.with
C.of D.through
16.We agreed _______more specific payment terms.
A.on B.in
C.to D.at
17.Extra expenses are to be borne _______me.
A.through B.with
C.by D.for
18.The consignment is delivered _______all the charges paid.
A.in B.by
C.with D.through
19.Owing _______unusual shortage of stock, this offer is made subject to the goods being unsold.
A.for B.at
C.to D.with
20.There are trade exhibitions going on all over China _______this time of the year.
A.at B.from
C.in D.for
II.Reading Comprehension (20%)(选出符合题目要求的选项并将“答题纸”的相应代码涂黑。错涂、多涂或未涂均无分。)
Questions 21 to 25 are based on the following passage:
In the past twenty years, though its economy was developing rapidly, China remains a developing country. Different from developed countries, which are well known for their abundance of capital and high cost of labor resources, China has plenty of low cost labor resources but lacks in capital. Difference in company resources has resulted in very different manufacturing process and corporation culture in China.
For a manufacturing enterprise, labor and equipment are two resources that can replace each other in a wide range. In developed countries, as a result of high labor cost and relevant abundant capital, enterprises often employ much more capital and equipment to replace the high cost labor resources when they design their enterprise projects. However in China, especially for middle and small private enterprises, capital often comes from private funding, capital is an insufficient resource. Also, China is a developing country with a massive population, and never lacks of labor force. When an enterprise designs the manufacturing process, it is very reasonable to use more labor and less equipment.
With the continuous growth of Chinese international trade in China, especially after China joined WTO, Chinese enterprises gradually enter the world market. On the other hand, enterprises from developed countries are also more and more involved in Chinese market. Two markets are gradually merging and two kinds of enterprises begin to compete in the same market. A real global market is forming and global manufacturing resources are being reorganized. Manufacturing process will be optimized to a new and uniform concept. This mutative process will have great influence over the world market. For Chinese enterprises, this change will bring more chances as well as more challenges.
21.According to the author, _______has resulted in very different manufacturing process and corporation culture in China.
C.在公司资源的差异D.文化背景差异
交流一番发达国家的企业在设计自己的企业项目?
A.企业往往采用了更多的资金和设备，以取代成本高昂的劳动力资源，当他们设计他们的企业项目。
B.企业经常使用更多的劳动力和设备少，当他们设计他们的企业项目。
C.企业更喜欢他们设计企业项目时，应用高科技。
D. None of these.
23.When Chinese enterprises design the manufacturing process, they use more labor and less equipment. This is because _______.
篇4：浙江1月自学考试《建筑结构试验》历年真题
B.对于平板型直线感应电机，定子演变成电机的次级，转子演变为初级
C.直线电机的行波磁场速度与电源频率成反比
D.直线电机的行波磁场速度与电机极距成反比
非选择题部分
注意事项：
用黑色字迹的签字笔或钢笔将答案写在答题纸上，不能答在试题卷上。
二、填空题(本大题共20小题，每小题1分，共20分)
21.直流测速发电机在工作转速范围内，输出电压与理想输出电压之差对最大理想输出电压之比，称为直流测速发电机的_______参数。
22.直流测速发电机中，电刷两端的电流具有_______特性。
23.直流电动机中，导体受力与通过的电流成_______比。
24.直流电动机的启动电流计算公式为_______。
25.直流电动机的发电制动状态，电磁转矩方向与转速方向_______。
26.脉冲变压器是主要用于驱动_______的常用元件之一。
27.变压器中铁芯的功能是_______。
28.控制式自整角机是将_______转换为电信号的检测元件。
29.正余弦旋转变压器中定子绕组分为励磁绕组和_______绕组。
30.感应同步器是一种用于_______的机电元件。
31.交流伺服电动机定心铁芯中两个绕组空间上互成_______角。
32.交流伺服电动机的实际转速与同步转速之差称为_______。
33.交流测速发电机中安放励磁绕组和_______绕组。
34.表征交流测速发电机性能的主要技术指标有线性误差，_______等。
35.永磁同步电动机不能自行启动的主要原因是定、转子之间转速差过大和_______。
36.只要负载转矩满足要求，反应式同步电动机的转速就等于_______。
37.直流无刷电动机利用电子开关线路和_______来替代交流电机的电刷和换向器。
38.步进电机的每相绕组通电顺序由_______提供。
39.单相通电时，步进电机的静态转矩最大值与_______平方成正比。
40.直线电机是一种不需要中间转换环节，可以直接做_______的电动机械。
三、简答题(本大题共6小题，每小题5分，共30分)
41.简述直流测速发电机与交流测速发电机的异同。
42.简述直流伺服电动机的机电时间常数及其影响因素。
43.简述线性旋转变压器的组成及其工作原理。
44.简述交流伺服电动机定子中圆形磁场的产生。
45.简述反应式同步电动机的组成及其工作原理。
46.简述直线感应式电机的组成及其工作原理。
四、计算题(本大题共2小题，每小题5分，共10分)
47.一台三相四拍运行的步进电机，转子齿数ZR=48，在A相绕组中测得的电流频率为600Hz。试求：该电动机步距角和转速。
48.一台交流伺服电动机，理想空载转速1200r/min，电源频率50Hz，试求：电机磁极对数和空载转差率。
篇5：浙江1月自学考试历年真题--《建筑结构试验》
请考生按规定用笔将所有试题的答案涂、写在答题纸上。
选择题部分
注意事项：
1. 答题前，考生务必将自己的考试课程名称、姓名、准考证号用黑色字迹的签字笔或钢笔填写在答题纸规定的位置上。
2. 每小题选出答案后，用2B铅笔把答题纸上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。不能答在试题卷上。
一、单项选择题(本大题共20小题，每小题2分，共40分)
在每小题列出的四个备选项中只有一个是符合题目要求的，请将其选出并将“答题纸”的相应代码涂黑。错涂、多涂或未涂均无分。
1.下列的控制电机，可以做为校正元件的是
A.直流伺服电动机和直流测速发电机
B.交流测速发电机和交流伺服电动机
C.步进电机和直线电机
D.交流测速发电机和直流测速发电机
2.直流电动机的组成元件包括
A.定子铁芯和励磁绕组
B.电枢铁芯和电枢绕组
C.电枢铁芯和电枢绕组，换向器和电刷
D.电枢铁芯和电枢绕组，换向器和电刷，功率放大器
3.下面关于直流测速发电机的纹波特性，是指
A.实际直流测速发电机输出电势总是带着微弱的脉动
B.实际直流测速发电机的转速总是带着微弱的脉动
C.实际直流测速发电机的电流总是带着微弱的脉动
D.实际直流测速发电机的磁通总是带着微弱的脉动
4.直流力矩电动机做成圆盘状的原因是
A.为了能在相同的体积和控制电压下，产生较大的转矩和较低的转速
B.为了能在相同的控制电流和控制电压下，产生较大的转矩和较高的转速
C.为了能在相同的体积和控制电压下，产生较小的转矩和较低的转速
D.为了能在相同的控制电流和控制电压下，产生较大的转矩和较低的转速
5.在负载转矩不变时，关于直流电动机的调速特性说明，正确的是
A.电动机的转速随电枢电压升高而增大
B.电动机的转速随电枢电阻升高而增大
C.电动机的转速随励磁回路电阻增大而减小
D.电动机的转速不受励磁回路电阻的影响
6.关于直流电动机反接制动状态的特点，说明正确的是
A.电动机端电压改变方向，并与感应电动势反向
B.电动机端电压方向不变，并与感应电动势反向
C.电动机端电压改变方向，并与感应电动势同向
D.电动机端电压方向不变，并与感应电动势同向
7.关于增大脉冲变压器脉冲宽度的方法正确的是
A.磁心采用Bm小，Br大的材料 B.磁心采用Bm大，Br大的材料
C.磁心采用Bm大，Br小的材料 D.磁心采用Bm小，Br小的材料
8.关于变压器的额定数据，说明正确的是
A.额定电压U2n是指原边绕组接U1n时的副边电压
B.额定电流是指正常工作时原、副边绕组所能承担的电流
C.通常原副绕组的设计额定容量不同
D.额定频率是指变压器可以正常工作的一个频率范围
9.变压器的两个主要变比计算公式为
A.k=U1/U2=I1/I2，k=W1/W2 B.k=E1/E2=I1/I2，k=W2/W1
C.k=U1/U2=I2/I1，k=W1/W2 D.k=E1/U2=I2/I1，k=W2/W1
10.自整角机的主要技术数据包括
A.励磁电压，最大输出电压，空载电流和空载功率
B.励磁电压，最大输出电压，额定电流和额定功率
C.励磁电压，最大输出电流，空载电流和空载功率
D.电枢电压，最大输出电压，额定电流和额定功率
11.关于感应同步器的基本工作原理，说明正确的是
A.感应同步器是基于双通道旋转变压器的原理
B.感应同步器输出电压的相位与转子转角成正比
C.感应同步器输出电压的幅值与转子转角成正比Www.KaO8.CC
D.感应同步器输出电流的频率与转子转角成正比
15.关于同步电动机的运行特性，说明正确的是
A.同步电动机的转速都等于其磁场同步转速
B.同步电动机的转速与电源频率成反比
C.同步电动机的转速与磁极对数成正比
D.同步电动机的转矩与电机电流成反比
16.关于直流无刷电动机的工作原理，说明正确的是
A.直流无刷电动机是利用转子位置传感器的位置反馈来切换驱动电流方向的
B.直流无刷电动机是利用定子位置传感器的位置反馈来切换驱动电流方向的
C.直流无刷电动机是利用转子速度传感器的位置反馈来切换驱动电流方向的
D.直流无刷电动机是利用定子速度传感器的位置反馈来切换驱动电流方向的
17.关于直流无刷电动机的堵转转矩影响因素，说明正确的是
A.与磁极对数成正比，与端电压成正比
B.与磁极对数成反比，与主磁通成正比
C.与磁极对数成正比，与电机单相绕组匝数成正比
D.与磁极对数成反比，与主磁通成反比
18.步进电机的“三相单三拍”是指
A.“三相”是指电机具有三个定子绕组，“三拍”是指三次换接为一个通电循环
B.“三相”是指电机一个绕组通三相电压，“三拍”是指三次换接为一个通电循环
C.“三拍”是指电机具有三个定子绕组，“单”是指通直流电
D.“三拍”是指电机一个绕组通三相电压，“单”是指每次只有单相绕组通电
19.关于步进电机的转子振荡固有角频率特性，说明正确的是
A.与转动部分的转动惯量的开方成反比，与转子齿数的开方成反比
B.与转动部分的转动惯量的开方成反比，与转子齿数的开方成正比
C.与转动部分的转动惯量的开方成正比，与转子齿数的开方成反比
D.与转动部分的转动惯量的开方成正比，与转子齿数的开方成正比
20.关于直线电机的结构和运行特性，说明正确的是
A.直线感应式电机主要分为平板型和管型
B.对于平板型直线感应电机，定子演变成电机的次级，转子演变为初级
C.直线电机的行波磁场速度与电源频率成反比
D.直线电机的行波磁场速度与电机极距成反比
非选择题部分
注意事项：
用黑色字迹的签字笔或钢笔将答案写在答题纸上，不能答在试题卷上。
二、填空题(本大题共20小题，每小题1分，共20分)
21.直流测速发电机在工作转速范围内，输出电压与理想输出电压之差对最大理想输出电压之比，称为直流测速发电机的_______参数。
22.直流测速发电机中，电刷两端的电流具有_______特性。
23.直流电动机中，导体受力与通过的电流成_______比。
24.直流电动机的启动电流计算公式为_______。
25.直流电动机的发电制动状态，电磁转矩方向与转速方向_______。
26.脉冲变压器是主要用于驱动_______的常用元件之一。
27.变压器中铁芯的功能是_______。
28.控制式自整角机是将_______转换为电信号的检测元件。
29.正余弦旋转变压器中定子绕组分为励磁绕组和_______绕组。
30.感应同步器是一种用于_______的机电元件。
31.交流伺服电动机定心铁芯中两个绕组空间上互成_______角。
32.交流伺服电动机的实际转速与同步转速之差称为_______。
33.交流测速发电机中安放励磁绕组和_______绕组。
34.表征交流测速发电机性能的主要技术指标有线性误差，_______等。
35.永磁同步电动机不能自行启动的主要原因是定、转子之间转速差过大和_______。
36.只要负载转矩满足要求，反应式同步电动机的转速就等于_______。
37.直流无刷电动机利用电子开关线路和_______来替代交流电机的电刷和换向器。
38.步进电机的每相绕组通电顺序由_______提供。
39.单相通电时，步进电机的静态转矩最大值与_______平方成正比。
40.直线电机是一种不需要中间转换环节，可以直接做_______的电动机械。
三、简答题(本大题共6小题，每小题5分，共30分)
41.简述直流测速发电机与交流测速发电机的异同。
42.简述直流伺服电动机的机电时间常数及其影响因素。
43.简述线性旋转变压器的组成及其工作原理。
44.简述交流伺服电动机定子中圆形磁场的产生。
45.简述反应式同步电动机的组成及其工作原理。
46.简述直线感应式电机的组成及其工作原理。
四、计算题(本大题共2小题，每小题5分，共10分)
47.一台三相四拍运行的步进电机，转子齿数ZR=48，在A相绕组中测得的电流频率为600Hz。试求：该电动机步距角和转速。
48.一台交流伺服电动机，电源频率50Hz，试求：电机磁极对数和空载转差率。
篇6：浙江1月自学考试《建筑结构试验》历年真题
选择题部分
注意事项：
1. 答题前，考生务必将自己的考试课程名称、姓名、准考证号用黑色字迹的签字笔或钢笔填写在答题纸规定的位置上。
2. 每小题选出答案后，用2B铅笔把答题纸上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。不能答在试题卷上。
一、单项选择题(本大题共20小题，每小题2分，共40分)
在每小题列出的四个备选项中只有一个是符合题目要求的，请将其选出并将“答题纸”的相应代码涂黑。错涂、多涂或未涂均无分。
1.下列的控制电机，可以做为校正元件的是
A.直流伺服电动机和直流测速发电机
B.交流测速发电机和交流伺服电动机
C.步进电机和直线电机
D.交流测速发电机和直流测速发电机
2.直流电动机的组成元件包括
A.定子铁芯和励磁绕组
B.电枢铁芯和电枢绕组
C.电枢铁芯和电枢绕组，换向器和电刷
D.电枢铁芯和电枢绕组，换向器和电刷，功率放大器
3.下面关于直流测速发电机的纹波特性，是指
A.实际直流测速发电机输出电势总是带着微弱的脉动
B.实际直流测速发电机的转速总是带着微弱的脉动
C.实际直流测速发电机的电流总是带着微弱的脉动
D.实际直流测速发电机的磁通总是带着微弱的脉动
4.直流力矩电动机做成圆盘状的原因是
A.为了能在相同的体积和控制电压下，产生较大的转矩和较低的转速
B.为了能在相同的控制电流和控制电压下，产生较大的转矩和较高的转速
C.为了能在相同的体积和控制电压下，产生较小的转矩和较低的转速
D.为了能在相同的控制电流和控制电压下，产生较大的转矩和较低的转速
5.在负载转矩不变时，关于直流电动机的调速特性说明，正确的是
A.电动机的转速随电枢电压升高而增大
B.电动机的转速随电枢电阻升高而增大
C.电动机的转速随励磁回路电阻增大而减小
D.电动机的转速不受励磁回路电阻的影响
6.关于直流电动机反接制动状态的特点，说明正确的是
A.电动机端电压改变方向，并与感应电动势反向
B.电动机端电压方向不变，并与感应电动势反向
C.电动机端电压改变方向，并与感应电动势同向
D.电动机端电压方向不变，并与感应电动势同向
7.关于增大脉冲变压器脉冲宽度的方法正确的是
A.磁心采用Bm小，Br大的材料 B.磁心采用Bm大，Br大的材料
C.磁心采用Bm大，Br小的材料 D.磁心采用Bm小，Br小的材料
8.关于变压器的额定数据，说明正确的是
A.额定电压U2n是指原边绕组接U1n时的副边电压
B.额定电流是指正常工作时原、副边绕组所能承担的电流
C.通常原副绕组的设计额定容量不同
D.额定频率是指变压器可以正常工作的一个频率范围
9.变压器的两个主要变比计算公式为
A.k=U1/U2=I1/I2，k=W1/W2 B.k=E1/E2=I1/I2，k=W2/W1
C.k=U1/U2=I2/I1，k=W1/W2 D.k=E1/U2=I2/I1，k=W2/W1
10.自整角机的主要技术数据包括
A.励磁电压，最大输出电压，空载电流和空载功率
B.励磁电压，最大输出电压，额定电流和额定功率
C.励磁电压，最大输出电流，空载电流和空载功率
D.电枢电压，最大输出电压，额定电流和额定功率
11.关于感应同步器的基本工作原理，说明正确的是
A.感应同步器是基于双通道旋转变压器的原理
B.感应同步器输出电压的相位与转子转角成正比
C.感应同步器输出电压的幅值与转子转角成正比Www.KaO8.CC
D.感应同步器输出电流的频率与转子转角成正比
15.关于同步电动机的运行特性，说明正确的是
A.同步电动机的转速都等于其磁场同步转速
B.同步电动机的转速与电源频率成反比
C.同步电动机的转速与磁极对数成正比
D.同步电动机的转矩与电机电流成反比
16.关于直流无刷电动机的工作原理，说明正确的是
A.直流无刷电动机是利用转子位置传感器的位置反馈来切换驱动电流方向的
B.直流无刷电动机是利用定子位置传感器的位置反馈来切换驱动电流方向的
C.直流无刷电动机是利用转子速度传感器的位置反馈来切换驱动电流方向的
D.直流无刷电动机是利用定子速度传感器的位置反馈来切换驱动电流方向的
17.关于直流无刷电动机的堵转转矩影响因素，说明正确的是
A.与磁极对数成正比，与端电压成正比
B.与磁极对数成反比，与主磁通成正比
C.与磁极对数成正比，与电机单相绕组匝数成正比
D.与磁极对数成反比，与主磁通成反比
18.步进电机的“三相单三拍”是指
A.“三相”是指电机具有三个定子绕组，“三拍”是指三次换接为一个通电循环
B.“三相”是指电机一个绕组通三相电压，“三拍”是指三次换接为一个通电循环
C.“三拍”是指电机具有三个定子绕组，“单”是指通直流电
D.“三拍”是指电机一个绕组通三相电压，“单”是指每次只有单相绕组通电
19.关于步进电机的转子振荡固有角频率特性，说明正确的是
A.与转动部分的转动惯量的开方成反比，与转子齿数的开方成反比
B.与转动部分的转动惯量的开方成反比，与转子齿数的开方成正比
C.与转动部分的转动惯量的开方成正比，与转子齿数的开方成反比
D.与转动部分的转动惯量的开方成正比，与转子齿数的开方成正比
20.关于直线电机的结构和运行特性，说明正确的是
A.直线感应式电机主要分为平板型和管型
篇7：1月大学英语六级考试真题(含答案)
2001年1月大学英语六级考试真题(含答案)
Part I Listening Comprehension (20 minutes)?
Section A?
Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the centre. ?
Example: you will hear:?
You will read:
A) 2 hours. B) 3 hours.
C) 4 hours. D) 5 hours. ?
From the conversation we know that the two are talking about some work they will
start at 9 o'clock in the morning and have to finish at 2 in the afternoon. Therefore, D) “5 hours” is the correct answer. You should choose ［D］ on the Answer Sheet and mark it with a single line through the centre.?
Sample Answer [A] [B] [C] [ D ]
1. A) The man thinks travelling by air is quite safe.?
B) The woman never travels by plane.?
C) Both speakers feel nervous when flying.?
D) The speakers feel sad about the serious loss of life. ?
2. A) At the information desk.
B) In an office.?
C) In a restaurant.
D) At a railway station. ?
3. A)Write the letter.
B) Paint the shelf.?
C) Fix the shelf.
D) look for the pen.
4. A) It gives a 30% discount to all customers.
B) It is run by Mrs. Winter's husband.?
C) It hires Mrs. Winter as an adviser.
D) It
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浙江1月自学考试《经贸英语》历年真题（精选7篇）
