問題詳情

4 The irregularities may have retarded, but they had not ___________ , the growth in the volume of trade at the port.
(A) prevailed
(B) prevented
(C) protected
(D) proven 

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)