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问题 选择题

小刚同学发现室内煤气泄漏，使人中毒，他应首先做的是（　　）

A．迅速做人工呼吸

B．立即关闭煤气阀门，打开门窗

C．拨打急救电话120

D．立即打开换气扇开关

答案

A、人工呼吸可以为中毒者提供一定得氧气，但是不关闭阀门，救人者也会中毒，故A错误；

B、关闭阀门，切断污染源，开窗通风冲淡室内的煤气，故B正确；

C、打电话时会将一氧化碳引燃，故C错误；

D、开电器时产生的电火花会将一氧化碳引燃，故D错误．

故选B．

阅读理解
1-5 是5段电视节目内容的解说词，A-E是与其相对应的节目名称，请为每个电视节目选择最合适的名称。

( ) 1. When you need help with your homework, go to the library. You may find magazines, newspapers,
            and big dictionaries. They can always help you.
(     ) 2. For families with children, an important problem is getting the children away from the television to 
            do their homework.
( ) 3. Even if you could buy the world, you couldn't buy a happy family, good friends, or knowledge.
(     ) 4. The Lost World is an exciting American film. People, especially school students, may like it.
(     ) 5. People might grow plants and vegetables in about 50 years.

A. Money isn't Everything (A talk about money with young people.)
B. American Film(An introduction(介绍) to new American films.)
C. Study Tools (工具)(The famous teacher Lin Hui will tell you about some useful study tools.)
D. Farms in the Future(about farming in the future.)
E. Popular Talks (A discussion(讨论) with parents who have trouble with their children.)
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单项选择题

颅内转移瘤来源最常见为（）

A.肺部

B.肝脏

C.泌尿系统

D.胃肠

E.皮肤及骨骼
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