至宝锭的药引是() A.黄酒 B.生姜 C.盐 D.焦三仙 E.芦根 发布时间:2017-06-30 17:07 │ 来源:www.tikuol.com 题型:单项选择题 问题: 至宝锭的药引是()A.黄酒B.生姜C.盐D.焦三仙E.芦根
题型:单项选择题 A.向碳酸氢钙溶液中加入过量氢氧化钠Ca2++2HCO+2OH-===CaCO3↓+2H2O+COB.等体积等物质的量浓度的氢氧化钡溶液与碳酸氢铵溶液混合Ba2++2OH-+NH+HCO===BaCO3↓+NH3·H2O+H2OC.氢氧化铝与足量盐酸反应Al(OH)3+3H+===Al3++3H2OD.过量CO2通入氢氧化钠溶液中CO2+2OH-===CO+H2O 查看答案
题型:单项选择题 The careless driver is ________ for the traffic accident that _____ yesterday.[ ]A. to blame; happened B. to blame; was happenedC. to be blamed; was happenedD. to be blamed; happened 查看答案