問題詳情

48. According to the passage, the presence of dropstones indicates that
(A) the glacial environment has been unusually server
(B) the fine-grained sediment has built up very slowly
(C) there has been a global ice age
(D) coarse rock material has been carried great distances

參考答案

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

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