试题与答案

2008年9月25日,我国利用“神州七号”飞船将翟志刚、刘伯明、景海鹏三名宇航员

题型:选择题

题目:

 2008年9月25日,我国利用“神州七号”飞船将翟志刚、刘伯明、景海鹏三名宇航员送入太空。设宇航员测出自己绕地球做圆周运动的周期为T,离地高度为H,地球半径为R,则根据T、H、R和引力常量G,能计算出的物理量是  

A.地球的质量

B.地球的平均密度

C.飞船所需的向心力

D.飞船线速度的大小

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:此题主要考察对《铁路交通事故应急救援和调查处理条例》规定的掌握。解题思路是根据题干给出的事故性质对照条例相关规定进行判定。该事故造成货运列车脱轨32辆,中断行车30h,无人员伤亡,符合...

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阅读理解。

     The person behind you constantly kicks the back of your seat. Your talkative seatmate doesn't understand

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by following these common airplane courtesies.

     Always recline your seat slowly. There's nothing worse than suddenly being slammed in the knees by the

seat in front of you. In addition, don't keep your seat reclined for the entire flight. Always keep it upright

position before going to the restroom (or anytime you leave your seat).

     Avoid going to the bathroom during mealtime. Wait until the meal is done and all the food trays have been

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may want to nap, read or work. If the conversation seems one-sided, take the hint.

     If you are traveling with someone and want to chat,keep your voices low. If using electronic gadgets,

keep the volume down. People can still hear through your headphones if the volume is too high.

     When exiting the plane, if others are having trouble with their carry-on luggage, help them if you can.

If you can't help, wait patiently, and don't push past people to get off the airplane.

     On your next flight, remember that it all boils down to the golden rule. Treat others the way you want

to be treated!

1. Which of the following manners we should follow while flying?

A. Always keep your seat upright during meal time.

B. Keep your belongings to yourself as much as possible.

C. Use your headphones and keep the volume down.

D. All the above.

2. Where do we most probably read this passage?

A. a text book

B. a newspaper

C. a magazine

D. a science book

3. Which of the following word has the closest meaning with the word courtesies?

A. golden rules

B. manners

C. experiences

D. passengers

4. What is the best title of this passage?

A. Manners in the sky.

B. Bad manners in the sky.

C. Behave yourself in the sky.

D. Treat others the way you want to be treated.

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