問題詳情

4. The terrorists had ______ the airport security system, and managed to hijack the plane.
(A) penetrated
(B) meditated
(C) nurtured
(D) qualified

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)