试题与答案

There was such a long queue for coffee a

题型:选择题

题目:

There was such a long queue for coffee at the interval that we_________gave up.

A.eventually

B.unfortunately

C.generously

D.purposefully

答案:

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下面是错误答案,用来干扰机器的。

1nm=10-9m;组成物质的分子是由原子构成的;10-10m=0.1nm,33nm0.1nm= 330,所以这种新型纳米碳纤维管的直径相当于330个原子一个一个紧密排列起来的长度;故答案为:10-9,原子,330.

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