2005年11月13日,中石油吉林石化分公司一工厂爆炸引发的松花江水污染,其主要的污 发布时间:2017-09-04 20:58 │ 来源:www.tikuol.com 题型:单项选择题 A1型题 问题: 2005年11月13日,中石油吉林石化分公司一工厂爆炸引发的松花江水污染,其主要的污染物质是()。A.酚类B.氰化物C.苯系化合物D.镉E.汞
题型:单项选择题 A1型题 改错。1. Can you point out the house which you live? _______2. I don't know the person to who you are speaking. _______3. They will never forget the days which they stayed together. _______4. Dongtou is a beautiful island and where we can enjoy delicious seafood. _______5. The book, which he paid 6yuan, is worth reading. _______ 查看答案