工艺管线水冲洗使用的水源一般以（）为主。
A、新鲜水
B、消防水
C、脱盐水
D、循环水
参考答案：A
托管人在QFII开户后，（）向托管人所有地分局备案。
A、5个工作日内
B、一个月内
C、三个月内
You are a salesman in a pharmacy company. Write a letter to Mr. Wang, one of your customers, to introduce a new medicine to him.
Do not sign your own name at the end of the letter. Use "Li Ming" instead.
Do not write the address.
