Computers must be of great use to -------- doing the scienti

问题描述:

Computers must be of great use to ________ doing the scientific research.
 A.those        B.who  C.those who      D.whomever
为什么呢?
1个回答 分类:英语 2014-10-27

问题解答:

我来补答
因为 those doing == those people who are doing --------强调‘正在’做某事的人们.
 
 
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