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问题 单项选择题 A3/A4型题

患者男，60岁。失眠约2年余。现症不寐，心烦，头晕耳鸣，健忘，腰膝酸软，口干咽燥，手足心热，舌红少苔，脉细数。

本病治法为（）。

A.滋阴降火，交通心肾

B.补益心脾，养血安神

C.清肝镇心

D.清热化痰，和中安神

E.益气镇惊，安神定志

答案

参考答案：A

单项选择题

Why do airplanes take longer to fly west than east

It can take five hours to go west-east from New York(NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon known as the jet(喷射) stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes moving at a constant air speed thus go faster in the west- east direction when they are moving with the wind than in the opposite direction.

2. What would happen if the gravity on Earth was suddenly turned off

Supposing we could magically turn off gravity. Would buildings and other structures (建筑物) float away What happened would depend on how ply the things were attached to the Earth, The Earth is moving at quite a speed, moving at over a thousand miles per hours. If you turn something around your head on a string(细绳) , it goes around in a circle until you let go of the string. Then it flies off in a straight line. ’ Switching off’ gravity would be like letting go of the string. Things not attached to the Earth would fly off in a straight line. People in buildings would suddenly shoot up-wards at a great speed until they hit the ceiling. Most things outside would fly off into space.

It can be inferred that without gravity（）.

A. buildings and other structures would float away

B. trees and buildings would not easily fly off

C. something around your head would not fly away

D. everything outside buildings would fly off into space
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判断题

陕西终南山重阳宫与北京白云观、山西芮城永乐宫并称全真道三大祖庭。
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