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Ozone _______ extremely active chemically, and succeeds in damaging any vegetation it comes in contact with.
(A) is
(B) being
(C) which is
(D) by being

答案：登入後觀看
難度： 簡單
1F
Janice Li 高二下 (2012/04/21)
Ozone  臭氧
vegetation  植被


Ozone _______ extremely active chemicall..-阿摩線上測驗