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什么是定位装置？

答案

参考答案：

为了使电力机车受电弓滑板在运行中与接触网始终良好地接触取流，需要将接触网按受电弓运行要求进行定位，这种确定接触线平面位置的装置，称为定位装置。

完形填空
阅读下面对话，从方框内7个选项中选择5个恰当的选项完成此对话，使其意思完整。
    A. I’ve gone to a paper factory.            B. That would be fine.
C. That’s terrible!                       D. Yes, of course.
E. Good idea!                          F. The river has become very dirty.
G. I’ve been to a paper factory.
A:  Where have you been, Fang Li ? I called you, but you weren’t in your office.
B: 小题1:_
A:  What did you do there?
B:  I found out that the factory was pouring waste water into the river near it. 小题2:_. Lots of fish have died.
A: 小题3:  _.
B:  Do you think “Greener China” can do something?
A: 小题4:_ . We can write a story about it to the TV station and the newspaper.
B: 小题5: _ . Businessmen are afraid of newspapers and TV stations.
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多项选择题

关于业主委员会的说法，正确的有()。

A.业主委员会由业主大会选举产生 

B.业主委员会是业主大会的决策机构 

C.地方人民政府有关部门应对选举业主委员会给予指导和协助 

D.业主委员会的决定对业主具有约束力 

E.业主委员会可依法更换不符合条件的成员
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