問題詳情

34. The increased carbon dioxide is probably not a threat to health, _____ it profoundly affects the way the earth is heated by the sun.
(A) nevertheless
(B) thus
(C) and
(D) but

參考答案

答案:D
難度:適中0.60514
統計:A(72),B(44),C(53),D(259),E(0)

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