构成物质的微粒有原子、分子和离子，如水是由______构成的，氖气是由_____

风险自留对策包括( )。

A．计划性风险自留

B．非计划性风险自留

C．出于竞争的考虑

D．应急风险自留

E．出于决策失误

医院药学部门的任务是（）

A.审定本院用药计划，确定本院基本用药目录

B.按照本院基本用药目录采购药品

C.准确调配处方，按临床需要制备制剂

D.做好用药咨询、临床药学以及药品评价工作

E.组织本院的药学教育与培训

句型转换。

1. We arrived in Beijing at six. (变为同义句)

    We ___________ ____________ Beijing at six.

2. It's Friday today. (对画线部分提问)

    ____________ ___________ is it today?

3. She went there by bus. (改为一般疑问句) 

   ___________ she ___________ there by bus?

4. My brother has supper at about six. (改为一般疑问句) 

   ___________ your brother ___________ supper at about six?

5. Did you go out for a walk after supper? (作否定回答)

    No,___________ ___________

6. The flowers are very beautiful. (改为感叹句)

    ___________ ___________ the flowers are.

7. He is cleaning the blackboard. (对画线部分提问) 

   ___________ he ___________?

8. His work started at half past eight. (对画线部分提问)

    ___________ ___________ his work start

9. My father is at home today. (用yesterday 改写)

    My father ___________ at home ___________.

10. They went to play soccer last week. (改为现在进行时)

     They ___________ ___________ soccer now.

11. I'd like a large bowl of noodles. (变为一般疑问句) 

      ___________ you ___________ a large bowl of noodles?

12. There are many interesting books in my bookcase. (变为单数句子)

      There ___________ ___________ interesting book in my bookshelf.

13. My grandfather is reading in the garden. (对画线部分提问)

      ___________  is your grandfather ___________?

14. My mother is a bank clerk. (对画线部分提问)

     ___________ ___________ your mother do?

15. Tom did his homework last night. (变为否定句)

     Tom ___________ ___________ his homework last night.

在正常条件下，确定机械工作( )h纯工作时间正常生产率和机械利用系数后，就可以确定机械台班的定额指标。

A．1
B．2
C．3
D．4

在24×24点阵字库中，每个汉字的字模信息存储在多少个字节中？（）

A.24；

B.48；

C.72；

D.12.