保险经纪人应为客户提供优质服务,满足投保人的正当要求。( ) A.对 B.错 发布时间:2017-05-26 18:29 │ 来源:www.tikuol.com 题型:单项选择题 问题: 保险经纪人应为客户提供优质服务,满足投保人的正当要求。( ) A.对 B.错
题型:单项选择题 —Can you tell me __________the book? —Last year. A.when did you buyB.when do you buyC.when you buyD.when you bought 查看答案
题型:单项选择题 已知在1×105Pa,298 K条件下,2mol氢气燃烧生成水蒸气放出484 kJ热量,下列热化学方程式正确的是[ ]A.H2O(g)=H2(g)+1/2O2(g)△H = +242kJ/mol B.2H2(g)+O2(g)=2H2O(l)△H = -484kJ/mol C.H2(g)+1/2O2(g)=H2O (l)△H = -242 kJ/mol D.2H2(g)+O2(g)=2H2O(g)△H = +484 kJ/mol 查看答案