患者，呃逆，呃声沉缓有力，得热减，得寒甚，胃脘不舒，纳少，口不渴，苔白腻。方用A．理

．计算：4a·5a=__ 

一级保养包括哪些内容？

单句改错

       下面每句中都有一处错误。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：每处错误及其修改均仅限一词；

1. The police is investigating (调查) the cause of the accident.

2. It's quite difficult to find who's responsible of pollution.

3. That's why I want to find out.

4. Here is the book written by him of lots of pictures in it.

5. That sounds like a great idea.

6. There are five for you to choose . You can choose one of them.

7. Please dial this number if you want any farther information.

8. The solution of the problem was helpful.

9. He apologised his teacher by writing him a letter.

10. He passed the English test, it really surprised his teachers.

天坛祈谷坛共有几层？每层台阶均是多少级？每层石栏望柱的雕饰有何不同？

继去年北京首次发行56亿元地方政府债券后，北京市2010年将再发行54亿元地方债券，重点支持25项民生工程建设。政府发行债券（）

①是取得财政收入的一种形式

②是为实现特殊经济政策而筹集资金

③是为居民新增加的投资渠道

④减小了国家的财政赤字

A.①②

B.③④

C.①③

D.②④