题目内容

It is known that water is not an endless resource,________can it be made once more,so we should save and protect it.

A. so        B. as       C. thus      D. nor

 

D 

考查连词。根据“水既不是一种无穷无尽的资源,也不能被再制造”和nor位于句首,句子用部分倒装,可知选D。

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