球A和球B可在光滑杆上无摩擦滑动，两球用一根细绳连接如图5-6-6所示，球A的质

以下历史图画和历史地图，反映的是同一历史事件。请仔细观察，结合所学知识回答：

（1）上两图反映的是汉武帝时期什么重大历史事件？

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（2）这一历史事件在的当时产生了怎样的作用？

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（3）该历史事件促使西汉政府于公元前60年设置了什么官职？它的设置标志着什么？

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氨甲蝶呤与新霉素合用，使氨甲蝶呤的毒性增加是因为

A．新霉素改变了胃肠酸碱度，使氨甲蝶呤的代谢受到影响

B．新霉素改变了药物分布，使氨甲蝶呤的代谢受到影响

C．新霉素改变肠道菌丛，使氨甲蝶呤的代谢受到影响

D．新霉素改变了药物代谢，使氨蝶甲蝶呤的代谢受到影响

E．新霉素改变了药物排泄，使氨甲蝶岭的代谢受到影响

Everyone knows that the French are romantic, the Italians are fashionable and the Germans are serious. Or do they? Are these just stereotypes or is there really such a thing as national character? And if there is, can it affect how a nation succeed or fail?

At least one group of people is certain that it can. A recent survey of the top 500 entrepreneurs (实业家) in the UK found that 70 percent felt that their efforts were not appreciated by the British public.

Britain is hostile to success, they said. It has a culture of jealousy (嫉妒) . As a result, the survey said, entrepreneurs were “unloved, unwanted and misunderstood”. Jealousy is sometimes known as the “green-eyed monster” and the UK is its home. Scientists at Warwich University in the UK recently tested this idea. They gathered a group of people together and gave each an imaginary amount of money. Some were given a little, others a great deal. Those given a little money were given the chance to destroy the large amounts of money given to others—but at the cost of losing their own. Two thirds of the people tested agreed to do this.

This seems to prove the entrepreneurs were right to complain. But there is also conflicting evidence. The Organization for Economic Cooperation and Development (OECD) recently reported that the UK was now the world’s fourth largest economy. That is not bad for people who are supposed to hate success. People in the UK also work longer hours than anyone else in Europe. So the British people are not lazy, either.

“It’s not really success that the British dislike,” says Carey Cooper, a Professor of management at the University of Manchester Institute of Science and Technology. “It’s people using their success in a way that seems arrogant (傲慢) or unfair or which separates them from their roots.”

Perhaps it is the entrepreneurs who are the problem. They set out to do things in their way. They work long hours. By their own efforts they become millionaires. But instead of being happy they complain that nobody loves them. It hardly seems worth following their example. If they were friendlier, people would like them more. And more people want to be like them.

小题1:What does the underlined “it” in the second paragraph refer to__________?

A．One group of people

B．A great survey

C．A nation

D．National character小题2:Most entrepreneurs surveyed believe that       .

A．the British public are hardworking

B．they are not popular simply because they are successful

C．love of success is Britain’s national character

D．they are considered as “green-eyed monsters”小题3:What does the result of the Warwich University test show_________?

A．Most people would rather fail than see others succeed

B．Two thirds of the people tested didn’t love money

C．An imaginary amount of money does not attract people

D．Most people are willing to enjoy success with others小题4:The writer of the passage seems to suggest that        .

A．jealousy is Britain’s national character

B．British entrepreneurs are not fairly treated

C．the British dislike the entrepreneurs because they do not behave properly

D．the scientists at Warwich University did a successful test小题5:Which of the following statements is true according to the passage?

A．Everyone knows that the French are romantic, the Germans are fashionable and the Italians are serious.

B．About 350 entrepreneurs in the UK felt that their efforts were not appreciated by the British public.

C．The British people are not lazy and they work longer hours than anyone else in the world.

D．Carey Cooper said that the British really dislike success.

急性左心衰时患者烦躁最好选用（）

A.哌替啶

B.氯丙嗪

C.安定

D.异丙嗪

E.吗啡

现实