作为一个庞大的系统软件，DBMS由众多程序模块组成，它们分别实现DBMS复杂而繁多的

建设新农村，要大力推广利用沼气解决生活用燃料问题，沼气的主要成分是[ ]

A.二氧化碳

B.一氧化碳

C.甲烷

D.氮气

阅读理解。

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

     Three  things  are  very  important: fresh air, fresh  food  and a  simple  way of life. People  living in

Himalayas (喜马拉雅山) are famous for their long and healthy lives. They work near their homes in the

clean mountains. They do not have buses, cars or trains. They do not 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 do not need doctors, for

there is not much illness. They are happy and healthy people.

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

A. They work near their homes in the clean mountains.

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

C. They eat vegetables grown by themselves.

D. They drink milk taken from their own cows.

2. Which one is NOT true about the people living in  Himalayas?

A. They live in a simple life in the mountains.

B. They grow vegetables and milk cows themselves.

C. When they're ill, they do not go to see the doctors.

D. They do not sit all day in busy offices.

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.

4. What are the Hunzas famous for?

A. Vegetables.    

B. Milk.    

C. Food.      

D. Their long and healthy lives.

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

从目镜内看到的物像是（）

农业技术推广应当遵循的原则之一是，尊重（）和农业生产经营组织的意愿。

A.农民群众

B.农业劳动者

C.农业生产者

D.农村劳动力

呼吸测量的目的是（）。

A.确定呼吸是否正常

B.判断呼吸是否异常

C.动态监测呼吸变化

D.协助诊断

E.了解有无影响呼吸测量的因素