双级离心泵和两支承式离心泵的轴向力是靠平衡盘平衡的。

题型:判断题

问题:

双级离心泵和两支承式离心泵的轴向力是靠平衡盘平衡的。

考点:油气管线安装工考试中级油气管线安装工考试中级油气管线安装工考试题库
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在电梯井、升降机井设置探测器时,其位置宜在()

A.井道侧壁

B.井道底部

C.机房顶棚

D.井道上方机房顶棚

题型:判断题

阅读理解诶。

Register (注册) in person, by phone 264-8833,or by mail. Use form given.

     178 IN Winchester St., Chicago

     Basic Photography This is an eight-hour course for beginners who want to learn how to use a 35mm

camera. The teacher will cover such areas as kinds of film, light and lenses (镜头). Bring your own 35mm

camera to class. Course charge: $ 50. Jan. 10, 12, 17, 19, Tues. &Thurs. 6:00-8:00 pm. Marianne Adams

is a professional photographer whose photographs appear in many magazines.

     Understanding Computers This twelve-hour course is for people who do not know much about

computers, but need to learn about them. You will learn what computers are, what they can and can't do,

and how to use them. Course charge: $ 75. Equipment charge: $10. Jan. 14, 21, 28, Sats. 7:00-9:50 pm.

Joseph Saimders is Professor of Computer Science at New Urban University. He has over twelve years of

experience in the computer field.

     Stop Smoking Do you want to stop smoking? Have you already tried to stop and failed? Now it's the

time to stop smoking using the latest methods. You can stop smoking, and this twelve-hour course will help

you do it. Course charge: $ 30. Jan. 4, 11, 18, 25, Wends. 4:00-7:00 pm. Dr. John Goode is a practicing

psychologist (心理学家) who has helped hundreds of people stop smoking.

     Typing This course on week-days is for those who want to learn to type, as well as those who want to

improve their typing. You are tested in the first class and practice at one of eight different skill levels. This

allows you to learn at your own speed. Each program lasts 20 hours. Bring your own paper. Course charge:

$125. Materials charge: $ 25. Two hours each evening for two weeks. New classes begin every two weeks.

This course is taught by a number of business education teachers who have successfully taught typing

courses before.

1. All the courses listed above are offered to the people _____.

A. who live in the city of Chicago

B. who are free in the evening

C. who want to take some special courses

D. who like to learn something new

2. Of all the courses mentioned in the passage, the shortest one is _____.

A. Understanding Computers

B. Basic Photography

C. Stop Smoking

D. Typing

3. There are typing courses _____.

A. on Saturdays and Sundays

B. from Monday to Friday

C. from Monday to Saturday

D. on each day in the week

题型:判断题

WAN代表的是()。

A、广域网

B、城域网

C、局域网

D、以太网

题型:判断题

当土塑限后继续变干,土的体积随含水量的减小而收缩。()

题型:判断题

税法的结构包括哪些要素

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