把质量为m g的铜丝灼烧变黑,立即放入下列物质中,铜丝变红,而且质量仍为m g的 发布时间:2017-06-03 23:51 │ 来源:www.tikuol.com 题型:选择题 问题: 把质量为m g的铜丝灼烧变黑,立即放入下列物质中,铜丝变红,而且质量仍为m g的是( )A.稀硫酸B.乙醇C.稀硝酸D.乙酸
题型:选择题 Little Ann likes wearing her mother's clothes, so she a woman. [ ]A. looks at B. looks for C. looks like D. looks after 查看答案