题型:名词解释 目前,一些发达国家已采用新一代饮用水消毒剂ClO2,请回答下列问题:(1)ClO2读作____________。(2)ClO2分子中氯原子与氧原子的个数比为________,其中氧元素的质量分数是____。(精确到0.1%) 查看答案
题型:名词解释 There is no ______in pushing children unless they are talented and they enjoy it.A.wonderB.needC.pointD.doubt 查看答案