問題詳情

28. The environment was ________ because the air was full of acid and metallic aerosolparticles.
(A) sanitary
(B) mercurial
(C) noxious
(D) unsoiled

參考答案

答案:C
難度:適中0.657895
統計:A(7),B(8),C(75),D(11),E(0)

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