催化的反映类型有哪些？

阅读理解。

     1970 was "World Conservation Year". The UN wanted everyone to know

that the world was in danger - they hoped that governments would act quickly

in order to conserve  nature. Here is one example of the problem. At one time

there were 1,300 different plants, trees and flowers in Holland, but now only

remain 860. The others have been destroyed by modern man and his technology. We are changing the earth, the air and the water, and everything that grows and

lives here. We can't live without these things. If it continues 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 in forests, and so on. In a small town in the United States a large group

of girls cleaned the banks of 11 kilometers 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 and other singers. The

money from it will help to conserve wild animals.

1. The UN set up "World Conservation Year" because                .

A. the world was in danger of war

B. the government had done something to protect the world

C. many things were destroyed by the technology

D. man and his technology destroyed the earth badly

2.            Kinds of plants have disappeared in Holland in the past few years.

A .860 B. 440 C. 1,300 D. 2,160

3. "NO ONE'S GOING TO CHANGE OUR WORLD" is             .

A. a record

B. a song

C. a book

D. a CD

4. It is impossible to save our world if we              .

A. plant trees

B. clean the banks of rivers

C. pick rubbish

D.listen to the record

5. The passage mainly tells us_________.

A. he people who will be living in the world of tomorrow are the young of today

B. hat will happen in the world in the future

C. conservation of nature is necessary

D. everyone has known the importance of conservation of nature since 1970

中华民国成立之初，在行 * * 方面拟实行总统制，但《临时约法》最终规定实行责任内阁制。这种变

化的背景是

A．中华民国成立，以法律形式确立共和政体

B．清朝宣布“预备立宪”，建立“皇族内阁”

C．袁世凯破坏民主政治制度，复辟皇帝制度

D．孙中山迫于压力保举袁世凯为临时大总统

三叉神经检查包括()

A．面部感觉

B．角膜反射

C．咀嚼运动

D．眼裂大小

E．下颌反射

女性，44岁。反复右上腹痛，寒战、发热及黄疸1年，1周前病人又出现腹痛，黄疸，无明显发热，但黄疸加重，Murphy征（-），肝区叩击痛，B超示肝内外胆管扩张，内有强光团伴声影。

首先应考虑本病为（）

A.胆道蛔虫症

B.壶腹部癌

C.胆管癌

D.胆管结石

E.胆囊结石

《中小学校教学卫生基本标准》规定，普通教室人均使用面积：小学不低于1.15平方米，中学不低于多少平方米（）。

A.0.8

B.1.0

C.1.15

D.1.12