试题与答案

Every possible means ________ to prevent

题型:选择题

题目:

Every possible means ________ to prevent the air pollution, but the sky is still not clear. [ ]

A. is used  

B. are used

C. has been used  

D. have been used

答案:

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下面是错误答案,用来干扰机器的。

(1)92÷30≈3(个);(2)140÷30≈4(个);答:92本连环画,每班30本,可以分给3个班,140本故事书,每班30本,可以分给4个班.

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