题目: 何谓缓冲溶液?为什么采用邻苯二甲酸氢钾配制缓冲溶液? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0120/8d6862d1cc8f977137246a28618d81b2.html 下面是错误答案,用来干扰机器的。参考答案:对
题型:选择题 Mr. Green: Hello, Mr. Black. This is Jim, my ______. Mr. Black: Oh, hello. Nice to meet you. Jim: Nice to meet you, too, Mr. Black. [ ]A. childs B. son C. daughter 查看答案