在正方形ABCD的边BC的延长线上取一点E，使EC=AC，连接AE交CD于F，那

阅读理解。

     In Africa, listening is a guiding principle. It's a principle that's been lost in the constant chat of the

Western world. From my own past experience, I noticed how much faster I had to answer a question

during a TV interview. It's as if we have completely lost the ability to listen. We talk and talk, and we

end up frightened by silence.

     Everywhere, people on the African continent write and tell stories. Even the nomads (流浪者) who

still live in the Kalahari Desert are said to tell one another stories on their daylong wanderings, during

which they search for roots and animals to hunt.

     A number of years ago I sat down on a stone bench outside the Teatro Avenida in Maputo,

Mozambique, where I worked as an artistic consultant. It was a hot day, and we were taking a break,

hoping that a cool gentle wind would move past. Two old African men were sitting on that bench, but

there was room for me, too. In Africa people share more than just water. Even when it comes to shade,

people are generous.

     I heard the two men talking about a third old man who had recently died. One of them said, "I was

visiting him at his home. He started to tell me an amazing story about something that had happened to

him when he was young. But it was a long story. Night came, and I decided that I should come back the

next day to hear the rest. But when I arrived, he was dead."

     The man fell silent. I decided not to leave that bench until I heard how the other man would respond

to what he'd heard. Finally he, too, spoke. "That's not a good way to die-before you've told the end of

your story."

     What separates us from animals is the fact that we are storytelling creatures and we can listen to other

people's dreams, fears, joys, sorrows, desires and defeats-and they in turn can listen to ours.

     Many people make the mistake of confusing information with knowledge. They are not the same thing. Knowledge involves the interpretation of information. Knowledge involves listening.

     Many words will be written on the wind and the sand, or end up in store. But the storytelling will go

on until the last human being stops listening. Then we can send the great record of human out into the

endless universe.

     Who knows? Maybe someone is out there, willing to listen…

1. From the very beginning of the passage, we can know Europeans ________.

A. actually lose the ability to listen

B. seldom chat constantly with each other

C. feel frightened when they are alone and silent

D. tend to talk more and listen less

2. It can be inferred from the passage that if you are in Africa, you will _______. 

A. suffer hot weather and lack of water      

B. be certainly helped when in trouble

C. often hear the stories told by strangers    

D. have no choice but to listen during a talk

3. According to the last three paragraphs, we can know _________.

A. no one knows exactly why Africans are willing to listen

B. information is hard to understand without interpretation

C. listening makes the difference between information and knowledge

D. the existence of humans' recordings totally depends on the way of storytelling

4. The passage mainly talks about __________.

A. the experience of the author          

B. the art of listening in Africa

C. the importance of storytelling        

D. the life styles of Africans

化脓性脑膜炎常见的临床表现有

A．发热

B．惊厥

C．脑膜刺激征

D．头痛

E．脑脊液改变

安装氧气阀之前，对气瓶的操作是应先（）。

A、旋开气阀，吹除瓶口污物

B、摇晃一下气瓶

C、对气瓶加热，保证压力

D、用扳手敲击气瓶

已知某载货汽车总质量为8t，其发动机最大转矩T_emax=353N·m单片离合器的摩擦片采用石棉机材料（模压），对摩擦片的外径D，内径d和厚度b进行分析设计。