沆瀣丹功效与作用

阅读理解。

     I live on the twelfth floor of a building. One afternoon I was coming home from a friend's house. It

was just after four o'clock. I got quickly into the lift and pressed Button (按钮) 12.

     The lift started to go up, but very slowly. And then, half way up, it suddenly stopped between two

floors. I couldn't understand it. I pressed all the buttons from 1 to 14. I called for help very loudly. But

nobody answered.

      Then suddenly the light went out, and I was alone in the dark. I started to cry and beat the walls of

the lift. I cried and cried until I had no voice left. Then, I felt hopeless, and pressed all the buttons with

my open hands. And all at the same time, there was a bell far away. It rang and rang. It was the fire

alarm (火灾警报). I thought the whole building was on fire. I said to God quietly, "Just get me out of

here. I'll never be bad again."

     Just then, I realized the lift was moving very slowly. On the ground floor it stopped, and the doors

opened. A man was standing there. "How long have you been in there? It is good that you pressed the

alarm bell. But haven't you learned to read at your school?" He pointed at a small piece of paper on the

wall beside the lift. It said:

     "Attention: This lift will be stopped for repairs between 4pm and 5 pm on Thursday March 13."

1. What happened to the lift?

A. It had a fire accident.                

B. It stopped half way.  

C. It was turned off by the writer.        

D. It moved fast up to the top floor

2. As the situation went on, the writer became _________.

A. more and more scared              

B. calmer and calmer  

C. more and more bored              

D. clearer and clearer

3. Why did a bell ring from far away?

A. The lift was to start again.          

B. The repair worker rang the lift alarm.

C. The building was on fire.            

D. The writer pressed the lift alarm bell.

4. Who most probably made the lift move again and go down to the ground floor?

A. The writer.        

B. The writer's friend.      

C. The man.    

D. The writer's father.

5. After reading the paper, the writer realized that he/she had _________.

A. escaped a fire accident              

B. made a silly mistake  

C. visited a dishonest friend            

D. pressed a wrong button

读图做题。

（1）目前，人类认识的天体系统中，层次最高的是________________。

（2）________________是太阳系的中心天体，________________则是地月系的中心天体。

（3）在太阳系的大行星中，地球位于________________和________________之间。

（4）简述地球具有生命物质存在的条件。

___________________________________________________________________。

诊断和鉴别诊断慢性前列腺炎哪项不适合（）。

A.尿常规检查

B.前列腺液常规镜检

C.前列腺直肠指诊

D.前列腺液细菌培养

E.前列腺穿刺活检

婴幼儿一般在（）时，对声音有反应，可辨别妈妈的声音。

A.8－9个月

B.4—6个月

C.0－3个月

D.7－8个月

某矿山某一爆区大块个数180个，爆破总量36万吨，试求：该爆区产生的大块率？（单位：个/万吨）