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
詳解 (共 1 筆)
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隨著時間的推移,數千年來,隨著太陽熱量的...