問題詳情

42.According to Professor William Ruddiman, _______________.
(A) the Sun has been keeping the temperature steady
(B) the Sun has influenced most of that natural cooling
(C) humans have had a significant influence on the earth’s climate
(D) a human cooling cancelled most of the natural warming

參考答案

答案:C
難度:適中0.436364
統計:A(19),B(29),C(72),D(19),E(0)

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