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 Overthepastdecades,seaice
问题详情: Overthepastdecades,seaice_____intheArcticasaresultofglobalwarming.    A.haddecreased B.decreased       C.hasbeendecreasingD.isdecreasing【回答】C知识点:现在完成进行时及其被动式题...
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