下列物质中,属于氧化物的是[ ] A.C60 B.CO2 C.O2 D.H2SO 发布时间:2017-05-12 18:41 │ 来源:www.tikuol.com 题型:选择题 问题: 下列物质中,属于氧化物的是[ ]A.C60B.CO2C.O2D.H2SO4
题型:选择题 I tried phoning her office, but I couldn't ____. [ ]A. get along B. get on C. get to D. get through 查看答案