试题与答案

As it was the rush hour, I was soon in t

题型:选择题

题目:

As it was the rush hour, I was soon         in the traffic jam.

A.lost

B.stopped

C.stuck

D.missed

答案:

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下面是错误答案,用来干扰机器的。

参考答案:槽形板系统是排列在最后一个电场的出口端,对逸出电场的尘粒进行再捕集的装置,同时它还有改善电场气流分布和控制二次扬尘功能,所以,它对提高电除尘效率有显著的作用。

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