写出下列化学反应的文字表达式,并注明各物质的化学式. (1)用过氧化氢溶液制取氧 发布时间:2017-07-23 03:55 │ 来源:www.tikuol.com 题型:填空题 问题: 写出下列化学反应的文字表达式,并注明各物质的化学式.(1)用过氧化氢溶液制取氧气;(2)铁在氧气中燃烧.
题型:填空题 ---Will you go and see the movie Net Mother with me?---Thank you. But I _________it already.A.sawB.have seenC.seeD.will see 查看答案
题型:填空题 (2014·山东临沂模拟)At the meeting,all the people were deeply________with her brilliant report.A.impressed B.surprisedC.excited D.comforted 查看答案