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Inthelast20years,seaice         intheArcticbecauseofglo...

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问题详情:

Inthelast20years,seaice         intheArcticbecauseofglo...

In the last 20 years, sea ice          in the Arctic because of global warming.

A. had decreased

B. decreased    

C. has been decreasing

D. is decreasing



【回答】

C

知识点:动词时态与语态

题型:选择题

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