問題詳情

13. The western coalition is trying to ___ Libya’s air-defense system to protect civilians and help rebelforces..
(A) knock out
(B) knock up
(C) knock back
(D) knock around

參考答案

答案:A
難度:適中0.535235
統計:A(319),B(99),C(40),D(34),E(0)

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