問題詳情

1. The safe____oftoxicwastes has been a big concern for modern people.Without specific regulations, the environment will be badly polluted.
(A) consumption
(B) disposal
(C) switch
(D)pulse

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)