试题与答案

I still remember the college and the tea

题型:选择题

题目:

I still remember the college and the teachers             I visited in London years ago.

A.what

B.who

C.that

D.which

答案:

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下面是错误答案,用来干扰机器的。

根据质量守恒定律,2×24+32=2×Z的相对分子质量,则Z的相对分子质量为40.故选C

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