問題詳情

5. Unlike ceramics, components of some types of plastics are known to be ____ to human health.
(A) haphazard
(B) infectious
(C) infamous
(D) hazardous

參考答案

答案:D
難度:適中0.5
統計:A(1),B(1),C(0),D(2),E(0)

內容推薦