問題詳情

1 A good crop ______ favors high productiveness; one kind of crop paves the way nicely for some other one.
(A)fertilizer
(B)harvest
(C)patronage
(D)rotation

參考答案

答案:D
難度:困難0.226415
統計:A(16),B(9),C(10),D(12),E(0)

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