检查某药物中的重金属，称取样品1.0g，依法检查，与标准铅溶液(1

搜题请搜索小程序“爱下问搜题”

问题单项选择题

检查某药物中的重金属，称取样品1.0g，依法检查，与标准铅溶液(10μg/ml)1.0ml在相同条件下制成的对照溶液比较，不得更深。重金属的限量为

A．百分之一
B．百万分之十
C．百万分之二十
D．0.01%
E．0.1%

答案

参考答案：D

填空题

用括号中所给单词的适当形式填空。

1. _________ (do) your mother have a computer?

2. That _________ (sound) interesting.

3. Our school _________ (have) a baseball team.

4. He has many balls in his room. Can you see _________ (they)?

5. My mother _________ (watch) sports on TV.

6. Let _________ (we) play volleyball.

7. You can join _________ (we) sports center.

8.We have many sports _________ (club).

问答题简答题

国家规定的哺乳期为多长时间？产后上班哺乳时间为多久？