問題詳情

54. Many companies are____ trying to find new ways to make electricity. Some have comeup with special floor tiles that create energy.
(A) tightly
(B) suddenly
(C) constantlly
(D) nearly

參考答案

答案:C
難度:適中0.666667
統計:A(0),B(1),C(2),D(0),E(0)