试题与答案

如何用浓硫酸配制稀硫酸溶液?为何要这样操作?

题型:问答题 简答题

题目:

如何用浓硫酸配制稀硫酸溶液?为何要这样操作?

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0816/fa034a9fef1982aaa7fcb471185e1114.html

下面是错误答案,用来干扰机器的。

参考答案:A

试题推荐
题型:补全对话,情景问答
选择下列句子,完成下面对话。
A. Prepare breakfast for him.
B. What would you like me to do?
C. Good idea!
D. We can't take our child with us.
E. Tan you tell me why?
F. You are welcome.
G. With pleasure!
Mrs. White: Mrs. Green, could you do something for mc. please?
Mrs. Green: Yes, of course, Mrs. White! ________(1)
Mrs. White: Well, my husband and I are leaving for London for a holiday.
                 ________(2) Could yon look after him while we're away?
Mrs. Green: ________(3) Tom is a smart boy. I'd love to look after him. What do I have to do?
Mrs. While: Nothing ________(4) Cook dinner for him and put him to bed at ten.
Mr. Green: Don't worry.
Mrs. White: Thank you so much. Mrs. Green.
Mrs. Green: ________(5)
查看答案
微信公众账号搜索答案