船舶交通管理系统的简称是＿。A.VIS B.VTS C.VHF D.IMO

阅读理解

       Jack drove a taxi through the busy streets from morning till night every day. One day a young man

jumped into his taxi. "To the station, hurry up ! " he said. Jack did his best, but at every corner there

was a red light. "Be quick! I don't want to miss my train. " The young man shouted at Jack. "I don't want

to die here ! "Jack shouted, too. Then he turned back and noticed the man's face. "Oh, he is the thief and

killed a woman," he thought, "his picture was in the newspaper. " Jack had an idea. He drove through the

red light. Soon Jack found a police car follow his. "Stop!" The young man shouted and jumped out. Jack

caught hold of him and cried out, "Give me money!" Two policemen came up. "He is the thief. " They

caught the young man at once.

       "You've done well.  Thank you ! " A policeman said to Jack.

1. Jack was a           .

A. driver      

B. policeman    

C. thief      

D. young man

2. The young man was a          .    

A. policeman    

B. driver    

C. thief          

D. doctor

3. Jack noticed that the young man was        .

A. his friend          

B. his workmate

C. a driver, too      

D. the murderer

4. Jack drove through the red light in order to make the police notice his car so he could _     . 

A. help the young man run away

B. help the police catch the murderer

C. make the police know his taxi was new

D. take the young man to the station in time

5. The policeman thanked Jack because he        .

A. drove-through the red light

B. helped them catch the thief

C. let the young man go away

D. helped the young man catch the train

二尖瓣狭窄伴快速房颤()
输液量过大()
高血压急症()

A．吗啡

B．快速利尿

C．血管扩张

D．洋地黄

E．氨茶碱

病毒感染可见（）

A．嗜酸性细胞结节

B．多形核白细胞增多

C．淋巴细胞增多

D．等量的中性粒细胞和淋巴细胞

E．大量嗜酸性和嗜碱性细胞

根据加涅的学习阶段，必须对外部刺激的特征做出选择性知觉的阶段是

A．领会阶段

B．习得阶段

C．保持阶段

D．回忆阶段

存在有偏重的零、部件在高速旋转时会产生很大的（）。

A.离心力

B.向心力

C.内应力向和径向