問題詳情

9. His mediation was not ___ of better relations between them, so a new mediator was assigned to improve the situation.
(A) impotent
(B) idle
(C) productive
(D) barren

參考答案

答案:C
難度:適中0.480519
統計:A(15),B(14),C(37),D(4),E(0)

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