下列属于行政区的最基本的要素是( )。A．一个设有相应行政机构的行政中心B．一定规

下列哪一项为正常腹部不应触及的脏器（）。

A.腹直肌腱划

B.横结肠

C.腰椎椎体

D.乙状结肠

E.子宫

“果导片”是一种常用缓泻剂，主要成分是酚酞．某同学欲将其作为酚酞指示剂的替代品，他将“果导片”研成粉末放入酒精中，搅拌、静置，取上清液滴入白醋和食盐水，看到______，滴入澄清石灰水发现______；确定“果导片”可作酸碱指示剂使用．当他用饮料吸管向滴有“果导片”清液的澄清石灰水吹气时，可观察到______现象．该反应的方程式为______．

阅读理解。

     Some people are pessimistic(悲观的)when they think about the future. They say that, a hundred

years from now, we will have used up most of the earths resources. We will have made our seas so

dirty that we will not be able to eat fish from them. There will be so many people in the world that we

will have to use all the countryside for housing; there will be no farmland left.

     Other people have a different idea about the future. In their view, the city of the future will be a

huge pyramid-shaped(金字塔形的) building, which will be floating on the surface of the sea. About

5,000 families will live there, and there will also be schools, shops in it.

In a hundred years'time, people will not need to use oil. They will heat their homes with power from

the sun.

     Think of space. Perhaps a station will be set up on the moon; people will be able to visit the moon

as to urists. They may even spend their holidays in space, travelling from planet to planet.

     What an interesting picture!

     Many people don't think about the future. "I don't care. I'll be dead. "they say. But it is our duty

to care because the world of a hundred years'time will be the world of our children's and their children

after them.

1. How many viewpoints are discussed here about the future?

A. Two      

B. Three      

C. Four        

D. Five

2. In the pessimistic view, people will        in a hundred years 'time.

A. have to use power from the sea  

B. have to live on the moon    

C .be able to grow food on the sea  

D. find it difficult to live on the earth

3. Where will people live in the future in the optimistic view?

A. On the moon  

B. On the sea      

C. In pyramids    

D. On other planets

4. The writer of the article seems to agree        .  

A. with those who look at the bright side of the future

B. with those who take a pessimistic view about the future

C. with those who won't trouble their heads about the future  

D. to none of these viewpoints

歌德的历史悲剧《铁手骑士葛兹•冯•伯利欣根》的思想内容。

驾驶机动车在这种道路上超车可借对向车道行驶。