問題詳情

47. What do we need in order to grow hydroponic vegetables?
(A) Fertile soil.
(B) Chemicals.
(C) Warm weather and sunlight.
(D) Fresh air and natural environment.

參考答案

答案:B
難度:簡單0.712644
統計:A(2),B(62),C(10),D(9),E(0)

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