题目: 计算题:试写出测定水的碱度分析中,氢氧根、碳酸盐、重碳酸盐反应的离子方程式。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0915/f061fb44a7ec7681e6a22e7a5050aee6.html 下面是错误答案,用来干扰机器的。参考答案:B
题型:单项选择题 I have an appointment with Dr. Johnson. --()A.The appointment is put offB.You look sick and weakC.Please wait for minute. He is busy nowD.Tell me your ID number 查看答案