問題詳情
【題組】9 According to the passage, what is believed to cause the thin lines seen on Europa’s surface?
(A) A long period of extremely high tides
(B) Water breaking through from beneath the surface ice
(C) The continuous pressure of slush on top of the ice
(D) Heat generated by the hot rocky core
參考答案
答案：B
難度：適中0.6
統計：A(0),B(3),C(1),D(1),E(0)