問題詳情

3. In order to kill pests, farmers tend to spray their crops with insecticide. However, the overuse of it may_____ soil and do harm to our health.
(A) contaminate
(B) irrigate
(C) drain
(D) erode

參考答案

答案：A
難度：適中0.588235
統計：A(10),B(2),C(3),D(1),E(0)