問題詳情
62．One of the reasons wind was rediscovered in the 1970s is that _______.
(A)．wind power is cleaner
(B)．it is one of the oldest power sources
(C)．it was cheaper to create energy from wind
(D)．the supply of coal and gas failed to meet needs
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)