問題詳情
Ozone _______ extremely active chemically, and succeeds in damaging any vegetation it comes incontact with.
(A) is
(B) being
(C) which is
(D) by being
參考答案
答案：A
難度：簡單0.718987
統計：A(284),B(31),C(40),D(7),E(0)
用户評論
【用戶】Janice Li
【年級】高二下
【評論內容】Ozone 臭氧vegetation 植被