問題詳情

6. The side _____ of the newly-invented drug for the respiratory disease are being extensively researched.
(A) secrets
(B) options
(C) usages
(D)effects

參考答案

答案:D[無官方正解]
難度:適中0.529412
統計:A(3),B(3),C(2),D(9),E(0)

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