問題詳情

49.According to the passage, natural evolutionary change is different from changes caused by humans in that changes caused by humans
(A)are occurring at a much faster rate
(B)are less devastating to most species
(C)affect fewer ecosystems
(D) are reversible

參考答案

答案:A
難度:適中0.666667
統計:A(4),B(0),C(1),D(1),E(0)

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