問題詳情
【題組】68. What is the major concern in the development of alternative energy according to the last two paragraphs?
(A) The transmission of power.
(B) The use of money and power.
(C) The conservation of solar energy.
(D) The selection of an ideal place.
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)