問題詳情

48.When plants use sunlight to make food, it is_____  .
(A) because they have started to turn brown.
(B) because their atoms have been destroyed.
(C) an example of a natural chemical reaction.
(D) very like the way a car engine burns oil.

參考答案

答案:C
難度:適中0.666667
統計:A(2),B(1),C(12),D(3),E(0)

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