問題詳情
13. No matter how much effort was in _______, the rescue team still kept searching for the survivors under the debris of collapsed houses after the earthquake.
(A) vain
(B) vision
(C) variety
(D) vehicle
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)