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.