問題詳情

39.According to the passage, what is the primary disadvantage of biofuels?
(A)They are a renewable resource.
(B)They consume a lot of energy during the production.
(C)They can replace a large amount of oil consumption.
(D)The process of making them is too complicated.

參考答案

答案:B
難度:適中0.691154
統計:A(49),B(461),C(84),D(73),E(0)

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