問題詳情

15.An occulting light is one in which the total duration of ____________ .
(A) light longer than darkness
(B)light and darkness equal
(C)light shorter than darkness
(D)darkness shorter than light

參考答案

答案：A
難度：適中0.5
統計：A(2),B(1),C(0),D(0),E(0)