O2、H2、CO2是常见的气体,实验室制取这三种气体的反应中,不包含的反应类型是 发布时间:2017-06-25 17:05 │ 来源:www.tikuol.com 题型:选择题 问题: O2、H2、CO2是常见的气体,实验室制取这三种气体的反应中,不包含的反应类型是[ ]A.化合反应 B.分解反应C.置换反应D.复分解反应
题型:选择题 选词填空。go off, run off, by the time, on time 1. _____ I got back to school, the bell had already rung. 2. My alarm clock didn't _____ this morning. 3. I got up late and I had to _____ to the bus stop. 4. She couldn't get to school _____ because she missed the early bus. 查看答案