問題詳情
【題組】66. We can make better use of wave energy if we _______.
(A). shorten its journey to thousands of homes
(B). build more small power stations on the oceans
(C). reduce the cost of turning it into electric power
(D). quicken the steps of producing electricity
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)