問題詳情
【題組】3. According to the passage, how could knowing the age of rocks benefit industry'?
(A) It reduced the dependence of industry on coal.
(B) It helped miners find new types of minerals.
(C) It helped people in their search for industrial minerals.
(D) It made it possible to mine rocks under Earth's surface.
參考答案
答案：C
難度：適中0.617143
統計：A(15),B(22),C(108),D(27),E(0)