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患者女性，30岁，原有心脏病病史（具体不详）。此次因情绪激动后突发气急，咳嗽，咳粉红色泡沫痰2小时来院。当地已予吸氧、输液等处理，效果不佳。查体：神志清，呼吸急促，伴大汗淋漓，心率130次∕分，律齐，心尖部舒张期杂音，双肺满布哮鸣音和湿啰音，SpO285%～90%。

其诊断应考虑为（）。

A.哮喘急性发作

B.急性左心衰竭

C.右心衰竭

D.呼吸衰竭

E.过敏反应

答案

参考答案：B

判断题

以多元化发展为目标的扩张通常采取收购资产，而且大都采取收购公司的方式来进行。（）
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单项选择题

Questions 53 to 57 are based on the following passage:The Internet can make the news more democratic, giving the public a chance to ask questions and seek out facts behind stories and candidates, according to the head of the largest US on-line service.’But the greatest potential for public participation is still in the future,’ Steven Case, chairman of America On-line, told a recent meeting on Journalism and the Internet sponsored by The Freedom Forum, though some other speakers say the new technology of computers is changing the face of journalism, giving reporters access to more information and their readers a chance to ask questions and turn to different sources.’You don’t have to buy a newspaper and be confined to the four comers of that paper anymore.’ Sam Meddis, on-line technology editor at USA Today, observed about the variety of information available to computer users.But the speakers noted the easy access to the internet also means anyone can post information for others to see.’Anyone can say anything they want, whether it’s right or wrong.’ said Case. Readers have to determine for themselves who to trust. ’In a world of almost infinite voices, respected journalists and respected brand names will probably become more important, not less,’ Case said.’The internet today is about where radio was 80 years ago, or television 50 years ago or cable 25 years ago, ’he said. But it is growing rapidly because it provides people fast access to news and a chance to comment on it.

The main topic of this passage is

A．the development of journalism

B．the effect of the internet has on journalism

C．the rapid development of the internet

D．the advantages of the internet
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