因构件截面外形突然改变，而引起局部应力急剧增大的现象，称为应力集中。

In many parts of the world, people live to a healthy old age. What is the secret of their long lives？

Three things are very important: fresh air, fresh food and a simple way of life. People who live in Himalayas（喜玛拉雅山） are famous for their long and healthy lives. They work near their homes in the clean mountains. They don’t have buses, cars or trains. They don’t sit all day in busy offices. They take more exercise and eat less food than people in the cities. They eat vegetables grown by themselves. They drink milk taken from their own cows. For years, the Hunzas of the Himalayas don’t need doctors, for there is not much illness. They are happy and healthy people.

小题1:Which is NOT the life of the people living in Himalayas？

A．They work hard in the fields.

B．They eat vegetables grown by themselves.

C．They take more exercise and eat more food than people in the cities.

D．They drink milk taken from their own cows.小题2:Which one is NOT true about the people living in Himalayas？

A．They live a simple life in the mountains.

B．They grow vegetables and milk cows themselves.

C．When they are ill, they don’t go to see doctors.

D．They don’t sit all day in busy offices.小题3:Which is NOT the secret of long life？

A．Fresh air.

B．Fresh food.

C．A simple way of life.

D．A simple way of eating.小题4:What are the Hunzas famous for？

A．Vegetables.

B．Milk.

C．Food.

D．Their long and healthy lives.小题5:They do not need doctors, for ________ .

A．the doctors are not good

B．there is not much illness

C．there is no illness

D．they are happy

中国传播马克思主义的的第一人是（）。

A.陈独秀

B.李大钊

C.毛 * *

阅读下面两段文字，完成下面问题。

　　齐景公问政于孔子。孔子对曰：“君君，臣臣，父父，子子。”公曰：“善哉！信如君不君，臣不臣，父不父，子不子，虽有粟，吾得而食诸？”

　　定公问：“君使臣，臣事君，如之何？”孔子对曰：“君使臣以礼，臣事君以忠。”

　　子夏问孝。子曰：“色难。有事，弟子服其劳，有酒食，先生馔，曾是以为孝乎？”

1、孔子所提倡的孝，就是不仅要__________，而且要________。

2、宋儒说“克己复礼”就是“存天理，灭人欲”，“君君，臣臣”就是“君叫臣死，臣不得不死”，这和孔子的原义有什么不同？

　_________________________________________________________

关于耵聍栓塞哪项有误（）

A.主要症状为耳堵塞感、耳鸣和耳聋

B.多数患者可无症状

C.可因吸水膨胀而产生或加重症状

D.外耳道内见棕色或黄褐色块状物堵塞外耳道

E.外耳道内有灰白色团块，多与外耳道壁紧密相贴

如图8-40（a）所示的UML类图描绘的是设计模式中的（1）模式。如图8-40（b）所示的UML类图描述了该模式的一种应用，其中与图8-40（a）中的"Creator"对应的类是（2）。

空白（1）处应选择（）

A.Command

B.Factory Method

C.Composite

D.Class Adapter