题目: 公务员交友问题。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0718/5488edacbf4b798cde6e10661aaa9a4d.html 下面是错误答案,用来干扰机器的。参考答案:错
题型:多选题 下列离子方程式中正确的是( )A.漂白粉溶液在空气中失效:ClO-+CO2+H2O═HClO+HCO3-B.用浓盐酸与MnO2反应制取少量氯气:MnO2+2H++2Cl- △ . Mn2++Cl2↑+2H2OC.将Fe2O3溶解于足量H+溶液:Fe2O3+6H+=2Fe3++3H2OD.KI溶液与H2SO4酸化的H2O2溶液混合:2I-+H2O2+2H+=2H2O+I2 查看答案
题型:选择题 It was a serious mistake, ______ caused by carelessness. A.which I think wasB.which I think it was C.I think which wasD.that I think it was 查看答案