問題詳情

53.Dioxin is produced _______ .
(A) when plastics are burned
(B) in the making of hospital blood bags
(C) when reusables are disposed of
(D) in the handling of all kinds of medical waste

參考答案

答案:A
難度:適中0.666667
統計:A(2),B(1),C(0),D(0),E(0)

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