上海師大附中等六校2011屆高三聯(lián)考英語(yǔ)試題

Those concerned by the long-term effects of global warming believe that the damage has been done, ______________________.

   A whether we take remedial steps now

    B.if or not we take remedial steps now

    C.whether we take remedial steps now or not

    D.unless we take remedial steps now

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上海師大附中等六校2011屆高三聯(lián)考英語(yǔ)試題

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