（1）①下列符号表示的意义是：2H______；3H2O______ ②用符号表

如图所示，下面几幅交通标志牌中，能明显表示用于防止噪声、保护环境的是（　　）

A．

B．

C．

D．

回答下列问题。

1. What's your name?

___________________________________________________________

2. What's your number?

___________________________________________________________

3. What class are you in?

___________________________________________________________

4. Where are you from?

___________________________________________________________

5. What are you?

___________________________________________________________

6. What's your father?

___________________________________________________________

7. What's your aunt?

___________________________________________________________

8. How old are you?

___________________________________________________________

9. Do you like English?

___________________________________________________________

10. What do you like?

___________________________________________________________

11. What's five and ten?

___________________________________________________________

12. Is two and nine twelve?

___________________________________________________________

贷款36万元，贷款利率5%，期限20年，按年本利平均摊还，第一年应偿还的本金为______元。(答案取最接近值。)

A．10830
B．10860
C．10890
D．10920

It（）us two hours walk to get to our school.

A. take

B. takes

C. spend

D. paid

高度怀疑自发性蛛网膜下腔出血，而CT检查阴性时应选择( )

A．MAI
B．MRA
C．头X-ray
D．核素扫描
E．腰穿