As has already been pointed out,grammar is not a set of dead

问题描述:

As has already been pointed out,grammar is not a set of dead rulrs.为什么不能用Which而用As
as代替一整个句子而which也可以啊
1个回答 分类:综合 2014-10-01

问题解答:

我来补答
As 在这里代替整个主句,引导非限制性定语从句,虽然which 也有类似用法,但which 引导的从句不能放在句首---主句的前面
 
 
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