你如何用一种试剂将NH4Cl、(NH4)2SO4、NaCl、Na2SO4四种溶液 发布时间:2017-07-20 15:42 │ 来源:www.tikuol.com 题型:问答题 问题: 你如何用一种试剂将NH4Cl、(NH4)2SO4、NaCl、Na2SO4四种溶液区别开来?
题型:问答题 ——Why are you walking so quickly, Edward?——There_____a talent show in ten minutes.A.will haveB.will beC.is going to haveD.are going to be 查看答案