問題詳情
54A ______ is a dramatic event caused by a fire, resulting from rapid re-introduction of oxygen to combustionin an oxygen-depleted environment; for example, the breaking of a window or opening of a door to anenclosed space.
(A)backdoor
(B)backdrop
(C)backbreaker
(D)backdraft
參考答案
答案：D
難度：適中0.409091
統計：A(2),B(4),C(4),D(9),E(0)