問題詳情

59. Why is fall to spring the best time to see the auroras?
(A)There are solar winds.
(B) The sun shines most of the day.
(C) The sky is dark for a longer period each day.
(D) It is warm enough and nighttime is short.

參考答案

答案:[無官方正解]
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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