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问题 单项选择题

“当你排除了不可能的情况后，其他的情况，尽管多么不可能，却一定是可能的”这是对哪种证明方法的描述（）？

A、直言证法

B、选言证法

C、反证法

D、归纳法

答案

参考答案：B

阅读理解
When you exercise, it is really important to drink lots of water because you lose (失去) water quickly at this time. Also, when your muscles (肌肉) work hard, they need water. When the weather is hot and you are going to do sports for a long time, you need more water. When should you drink water?
An hour before the games or “high-energy” activities
1 glass
Every 20 minutes in the games
1 glass
After the games
2 glasses
  After you finish doing sports, it can also be a good idea to have some juice or other drinks with sugar in it, and you can recover quickly. A sports drink is good if you are going to exercise more than an hour.
It is not a good idea to drink water until (直到) you’re thirsty.
小题1:Why do we need to drink water when we exercise?
A．Because it is too hot.B．Because we feel tired.
C．Because we lose water quickly.D．Because the muscles like water.
小题2:What does “recover” mean here in Chinese?
A．解渴B．恢复C．兴奋D．强壮
小题3:What can be the best title (标题) for the passage?
A．Exercise and HealthB．Hot Weather and Sports
C．How to ExerciseD．Exercise and Drinking Water
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单项选择题

弹簧管架是（）与刚性支架组合在一起构成的。

A、弹簧导向板

B、弹簧吊架

C、弹簧

D、滑托
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