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问题 选择题

与北京相比，合肥的自转

A．角速度和线速度都相同

B．角速度和线速度都不同

C．线速度相同，角速度不同

D．角速度相同，线速度不同

答案

答案：D

本题考查地球自转速度。角速度规律：除两极点外，处处相等；线速度的规律：自赤道向两极递减。故合肥的角速度与北京相同，线速度较北京大。

阅读理解

阅读理解。

     As we know, Beijing has changed a lot. Most of the people feel much safer now. More and more trees

are planted in the city. And every day you can see many old people play sports everywhere. The change

makes the people in the city live a happy life. The small survey below is from the people who live in Beijing.

One hundred persons were chosen to answer the questions last week.

1. From the survey, _______ of the people in Beijing care about health.

A. 41%

B. 80%

C. 39%

D. 52%

2. From the survey, we know most people want to live ________.

A. in a busier place

B. in a quieter place

C. in a greener place

D. on the mountain

3. Most people think working in Beijing is _______.

A. bad

B. good

C. hard

D. sad

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判断题

慢性肾小球肾炎降压治疗药物首选钙通道阻滞剂。（）
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