問題詳情

According to the passage, how do plants know that it is time to flower?
(A) The electricity in the tissues breaks out on the surface in spring
(B) The leaves detect the precise duration of daylight hours
(C) The growth points sense that it is springtime
(D) The roots react to the changing degree of humidity in the soil

參考答案

答案:B
難度:適中0.676923
統計:A(10),B(44),C(7),D(2),E(0) #
個人:尚未作答書單:介係詞

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