問題詳情

33. According to the passage, what in the rock strata is a clue to geologists of a past ice age?
(A) Ice
(B) Melting glaciers
(C) U-shaped valleys
(D) Substances from other areas

參考答案

答案:D
難度:適中0.631579
統計:A(2),B(1),C(3),D(12),E(0)

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