华为AR与华为BR之间互连使用POStrunk链路，POS端口在IP-TRUNK中协

根据下表提供的信息回答问题

根据表3，1995—2003年间，工资增幅最大的行业是( )。

A．科学研究和综合技术服务业

B．国家机关、政党机关和社会团体

C．卫生、体育和社会福利业

D．电力、煤气及水的生产和供应业

阅读理解。

    1970 was World Conservation(自然保护)Year. The United Nations wanted everyone to know

that the world is in danger. They hoped that people would act quickly in order to conserve nature(大

自然). Here is one example of the problem. At one time there were 1,300 different plants, trees

and flowers in Holland, but now only 866 remain. The others have been destroyed by modern man.

It is said that there are tens of thousands of kinds of animals in the world, but now many have died

out(绝种). We are changing the earth, the air and water, and everything that grows and lives. We

can't live without these things. If we continue like this, we shall destroy ourselves.

    What will happen in the future?Perhaps it is more important to ask"What must we do now?"The

people who will be living in the world of tomorrow are the young of today. A lot of them know that

conservation is necessary. Many are helping to save our world. They plant trees, build bridges across

rivers and so on. In a small town in the United States a large group of girls cleaned the banks of 11

 kilometres of their river. Young people may hear about conservation through a record called"No

one's going to change our world."It was made by the Beatles, Cliff Richard and other singers. The

money from it will help to conserve wild animals.

1. "No one's going to change our world"was___________ .

A. an important book published in 1970

B. an idea that nobody would accept(接受)

C. a record calling on people to conserve nature

D. a newspaper report in 1970

2. What's the most important thing for us to do to save our world?

A. We should know what will happen in the future.

B. We should plant more trees and flowers.

C. We should clean the banks of our rivers.

D. We must do what we must do to save our world.

3. What's the main idea of the passage?

A. 1970 was World Conservation Year.

B. The United Nations wanted everyone to know that the world is in danger.

C. Conservation is necessary.

D. Young people are helping to save our world.

知觉对象的条件在一定范围内改变时，知觉映象仍保持相对不变，这是知觉的（）

A.整体性

B.迭择性

C.理解性

D.恒常性

E.永恒性

检测结果阴性就是没有感染吗？

().