计算机操作系统是方便用户、管理和控制计算机的【1】。

预防药物不良反应是采取

A．新药上市后的追踪观察

B．新药上市前严格审查

C．药物临床前研究的规范化

D．不良反应处理的原则

E．合理使用药物

社会主义建设新时期，中 * * 提出并大力实施“科教兴国”战略。为实施“科教兴国”战略奠定理论基础的是[ ]

A．“科学技术是第一生产力”的论断

B．中 * * 、国务院《关于加强科学技术进步的决定》

C．“教育要面向现代化，面向世界，面向未来”的方针

D．中 * * 《关于科学技术体制改革的决定》

我国是多山的国家，这些绵长的山脉有着各种走向。下列山脉走向与巫山走向基本垂直的是[ ]

A．阴山    

B．长白山      

C．武夷山        

D．大兴安岭

Alice is famous ________ her paintings.[ ]

A. for

B. of

C. as

D. to

A man once said how useless it was to put advertisements in the newspapers. "Last week," said he, "my umbrella was stolen from a London church. As it was a present, I spent twice its worth in advertising, but didn't get it back."

"How did you write your advertisement?" asked one of the listeners, a merchant.

"Here it is," said the man, taking out of his pocket a slip（纸条） cut from a newspaper. The other man took it and read, "Lost from the City Church last Sunday evening, a black silk umbrella. The gentleman who finds it will receive ten shillings（先令） on leaving it at No.10 Broad Street."

　　"Now," said the merchant, "I often advertise, and find that it pays me well. But the way in which an advertisement is expressed is of extreme importance. Let us try for your umbrella again, and if it fails, I'll buy you a new one."

　　The merchant then took a slip of paper out of his pocket and wrote: "If the man who was seen to take an umbrella from the City Church last Sunday evening doesn't wish to get into trouble, he will return the umbrella to No. 10 Broad Street. He is well known."

　　This appeared in the paper, and on the following morning, the man was astonished when he opened the front door. In the doorway lay at least twelve umbrellas of all sizes and colours that had been thrown in, and his own was among the number. Many of them had notes fastened（系牢） to them saying that they had been taken by mistake, and begging the loser not to say anything about the matter.

66. who would receive ten shillings according to the first advertisement ?

A. Anyone who found the thief

B. Anyone who gave a message to the loser of the umbrella

C. Anyone who left the umbrella in the City Church                         

D. Anyone who left the umbrella at No. 10 Broad Street

67.What was the result of the first advertisement __________?

A. the man got his umbrella back        B. the man wasted some money advertising

C. nobody found the missing umbrella    D. the umbrella was found somewhere near the church

68.The businessman suggested that the man should______.

A. buy a new umbrella      B. go on looking for his umbrella

C. report to the police       D. write another advertisement

69. What did the businessman mean by saying “if it fails, I will buy you a new one.?” _________.

A. he was quite sure of his success         B. he was not sure if he could get the umbrella back     

C. he did not know what to do            D. he was rich enough to afford a new umbrella

70 The writer of this story mainly wants to tell us __________.

A. a useless advertisement               B. how the man lost and found his umbrella

C. how to make a helpful advertisement.    D. what the businessman did for the umbrella owner