星型连接的对称三相电源的线电压为380V,则电源的相电压为()。A、380V B、2

题型:单项选择题

问题:

星型连接的对称三相电源的线电压为380V,则电源的相电压为()。

A、380V

B、220V

C、200V

D、180V

考点:精细化工考试电气部分电气部分题库
题型:单项选择题

Since my family were not going to be helpful about my taking a cooking job, I decided I  1  look for one all by myself and   2   them about it till I'd get one. I had seen an agency advertised   3   a local paper, so   4  there was no one about to say “ Where are you going? ”, I rushed out of the house   5  it. I was widely   6   and was nervous as if I   7  on the stage. Finding the place quite easily, I tore up three flights of stairs, and swung breathlessly  8   a door which said “ Enter without knocking, if you   9  . ”   

The simple atmosphere of the office   10  me, and I sat carefully down on the edge of a chair. The woman at the desk   11  looked at me for a while through her   12  , and I was about to move my feet   13  I realized that she was questioning me in a low voice. I answered softly and I started to feel   14  helpless.

She made   15  to me in a way that she wondered   16  I was looking for this sort of joB.I felt even more helpless when she told me that it   17  difficult to get a job without   18  or reference. Then I heard her say, “  19  , I've got someone in the office at   20   moment who might suit. ”

1.A.would       B.ought       C.wanted     D.liked

2.A.told    B.not tell     C.not told    D.not to tell

3.A.on      B.at     C.for   D.in

4.A.as soon as B.as to        C.far    D.as

5.A.search for B.in search of     C.finding    D.looked for

6.A.excited      B.worried    C.exciting   D.worrying

7.A.was going B.were coming   C.was coming     D.were going

8.A.through     B.by    C.in     D.to

9.A.pleased      B.pleasant   C.please      D.pleasure

10.A.calmed       B.excited     C.moved      D.frightened

11.A.opposite     B.against     C.back        D.face

12.A.glass   B.glasses     C.eyes D.eye

13.A.while B.before      C.after        D.when

14.A.rather  B.fairly       C.too   D.little

15.A.it        B.that C.know       D.it known

16.A.how    B.why C.whether   D.where

17.A.were   B.should be        C.would be D.was

18.A.experience B.experiment      C.time        D.money

19.A.In a fact     B.As a matter of fact   C.As to fact     D.As a matter

20.A.a very        B.very a       C.very the   D.this very

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C.骨骺分离形成

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乡镇人民代表大会代表,如果被逮捕、受刑事审判、或者被采取法律规定的其他限制人身自由的措施,执行机关应当立即向谁报告?

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