23.It is known that water is not endless resource.nor that can be made once more. A.the, 不填 B.an, one C.an, that D.不填, one 查看更多

 

题目列表(包括答案和解析)

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

 

查看答案和解析>>


同步练习册答案