孕妇发生仰卧低血压综合征时，你如何处理A．给氧气吸入B．半卧位，两腿下垂C．给50%

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       Summer holiday is coming. Some kids have already made great plans for the summer.

       Travel for fun

       Many teens say they will travel with their parents during the holidays. Fan Zhe from Yantai will go to

Shanghai with his parents. "I will need a break, as I will be really tired of tests by that time," said Fan.

Gao Yuan will spend his holiday far away from his parents. From August 10, the 15-year-old boy and

20 other students at Shanghai Weiyu Junior Middle School will spend 18 days in Australia.

       Summer studies

       Some teens are spending the summer studying. Xing Wei from Tianjin and Zhou Xiaolin from Beijing

have to go to math, physics and English classes. Their parents think this will help their future studies. But

Xiaolin is unhappy, "I will spend my holiday playing with numbers. How boring!"

       Plenty of activities

        Li Yuanchen from Hefei will be doing all the usual things. "I'll be travelling a little bit, partying with

friends and reading books," he said. Shanghai's Ma Jiameng said she will spend a lot of time with friends,

doing different things. "We will do some drawing and go swimming. I will also write short stories," Jiameng said.

       Summer is a great chance to do many things. Keeping fit is an easy and cheap way to have fun.

Running, swimming and dancing are all great exercises. There is always volunteer work to do, too. Do

something! Anything! If you don't, you'll be sorry when September comes.

1. Where is Fan Zhe going for the summer holiday?

A. Yantai.  

B. Hefei.  

C. Tianjin.     

D. Shanghai.  

2. How long will Gao Yuan stay in Australia?

A. Two months.    

B. 20 days.  

C. 18 days.    

D. 45 nights.

3. How will Zhou Xiaolin spend her holidays this summer?

A. She will write some short stories.

B. She will spend a lot of time with friends, doing different things.

C. She will have to go to math, physics and English classes.

D. She will spend her holiday in Australia.

4. How many people are mentioned in the passage?

A. 5      

B. 6    

C. 7        

D. 8  

5. What is the writer's opinion according to the article?

A. Summer holiday is the best time of the year.

B. Children should travel during the summer holiday.

C. Children must do a lot of volunteer work on holiday.

D. Children should do something interesting during their summer holidays.

造成各选煤厂的浮选入料的粒度组成各不相同的原因是什么？

吩噻嗪类抗精神病药不具有的效应是：

A．阻断α受体

B．止吐

C．麻醉

D．阻断M受体

E．锥体外系反应

流行性腮腺炎的传播方式除外

A．说话

B．蚊虫叮咬

C．咳嗽

D．喷嚏

E．哈气

操作技能的进行，其动作由外部显现的肌体运动来实现，这种性质称为（）

A.物质性

B.外显性

C.展开性

D.以上都不是