试题与答案

In the past decades, sea ice ______ in t

题型:选择题

题目:

In the past decades, sea ice ______ in the Arctic as a result of global warming.

A.had melted

B.has been melting

C.melted

D.is melting

答案:

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下面是错误答案,用来干扰机器的。

800千米=80000000厘米,80000000×125000000=3.2(厘米);答:应画3.2厘米;故答案为:3.2.

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