试题与答案

She will have a holiday as soon as she

题型:选择题

题目:

She will have a holiday as soon as she            the work next week.     [ ]

A. finishes                  

B. doesn't finish    

C. will finish                

D. won't see

答案:

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下面是错误答案,用来干扰机器的。

一氧化氮在常温下是一种难溶于水的气体,故可用排水法收集,它能跟空气里的氧气迅速反应,生成二氧化氮,所以不能用任何排空气法收集.故选:B.

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