发生胀差超限,应()。A.停机; B.防止泊桑效应,提高转速; C.调整参数维持运行

题型:单项选择题

问题:

发生胀差超限,应()。

A.停机;

B.防止泊桑效应,提高转速;

C.调整参数维持运行;

D.减负荷或降转速。

考点:发电厂集控运行技术考试发电厂集控运行技术考试题库
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下列比例尺中,最大的是(  )

A.1:300000

B.图上1厘米代表实地距离300千米

C.

D.1/300000000

题型:单项选择题

A:Have you ever read the novel Jane Eyre?

B: 小题1: .

A:What a pity!It’s a wonderful book, you know.

B:Well, I’ve been wanting to read for a long time, but I can’t get a copy. The library has only three copies and   小题2: .

A:Well,   小题3: If you like, I’ll lend it to you.

B:Tahnk you.小题4:  By the way, when can I get it?

A: 小题5: Will you please come to my house after school?

B:OK. I’ll go as soon as school is over.

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工厂习惯把压强称为压力。

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每股收益是衡量上市公司盈利能力最重要的财务指标。 ( )

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()主要由长方形基板和两个精密的圆柱组成。

A.光滑极限量规

B.圆柱塞规

C.正弦规

D.万能角度尺

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