具有行气止痛，温。肾散寒作用的药物是（）
具有行气止痛，温肾纳气作用的药物是（）

A.乌药

B.沉香

C.川楝子

D.青木香

E.薤白

阅读理解。

      American school life is different(和…不同)from Chinese. American students usually get to school at around 8:30 in the morning. School starts at 9:00. They put their school bags in their lockers(柜子)and only take one book, one notebook and one pen to each class. In class, American students can sit in their seats(座位)when they answer their teachers’ questions. They often ask lots of questions in class.

      At around 12:00 students have lunch. American students don’t go home for lunch. They have it at school. Most students like chicken, hot dogs or hamburgers. At 13:00 in the afternoon, they begin to have classes. Their classes are usually over at 15:00. Then they join in school clubs or play sports.

1. American School starts at ______ in the morning.

A. eight thirty            

B. nine o’clock    

C. nine thirty

2. American students usually ______ in class.

A. eat lots of chicken      

B. read lots of books      

C. ask lots of questions

3. American students often ______ at 15:30 on weekdays(工作日).

A. play sports      

B. have classes      

C. eat lunch

4. The best title(标题)of this passage is “______”.

A. American School Clubs

B. American School Life

C. American School Dinner