問題詳情

【題組】22.Where do the northern and southern lights occur?
(A)In outer space.
(B) In the earth’s magnetic field.
(C)Under the clouds.
(D) In the atmosphere.

參考答案

答案：D
難度：簡單0.75
統計：A(1),B(0),C(1),D(6),E(0)