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Inthelast20years,seaice intheArcticbecauseofglo...
问题详情:Inthelast20years,seaice intheArcticbecauseofglobalwarming.A.haddecreasedB.decreased C.hasbeendecreasingD.isdecreasing【回答】C知识点:动词时态与语态题型:选择题...