問題詳情

46According to the passage, which is the best solution to energy problems?
(A)Improving conservation efforts
(B)Inventing fuel-free appliances and vehicles
(C) Increasing the efficiency of appliances and vehicles
(D) Searching for alternative energy sources

參考答案

答案:D
難度:適中0.486486
統計:A(3),B(7),C(7),D(18),E(0)

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