向盛有I2水溶液的试管中,再加四氯化碳振荡,静置后观察到的现象是( ) A.上层 发布时间:2017-07-01 14:38 │ 来源:www.tikuol.com 题型:选择题 问题: 向盛有I2水溶液的试管中,再加四氯化碳振荡,静置后观察到的现象是( )A.上层橙红色,下层接近无色B.均匀、透明、紫红色C.均匀、透明、无色D.上层接近无色,下层紫红色
题型:选择题 What Tom often told me in the past was he didn’t succeed,he would still go on studying hard until he was successful.A.what unlessB.thatC.even ifD.that even if 查看答案