问题
选择题
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
答案
答案：D
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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
答案：D