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

题型:填空题

问题:

(1)①下列符号表示的意义是:2H______;3H2O______

②用符号表示:硫酸根离子______;正二价的镁元素______.

(2)按要求完成下列反应的化学方程式:

①化合反应______;

②分解反应______;

③有金属生成的置换反应______;

④复分解反应______.

考点:化学反应方程式的书写文字表达式
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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.

题型:填空题

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?

___________________________________________________________

题型:填空题

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

题型:填空题

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

A. take

B. takes

C. spend

D. paid

题型:填空题

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

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