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0.68254
統計:A(4),B(3),C(43),D(2),E(0)

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