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问题 单项选择题

中药配伍中的相杀指的是（）

A.治疗目的相同的药物配伍应用

B.性能功效相类似的药物配合应用，可以增强原有疗效

C.一种药物能消除或降低另一种药物的毒副作用

D.一种药物能使另一种药物功效降低或丧失

E.以上都不是

答案

参考答案：C

多项选择题

患者男，50岁，因“咳黄痰、喘息伴低热5d”来诊。慢性咳喘10余年，冬春季发作。吸烟史22年，15～20支/d。

查体：T37.9℃，P89次/min，BP120/85mmHg；双肺呼吸音粗糙，可闻及散在干、湿性啰音。

血常规：WBC9.5×109/L，嗜酸粒细胞0.69×109/L。

胸部X线片：双上肺透光度增强，双下肺纹理重。

提示：患者喘憋症状加重，夜间不能平卧；双肺满布哮鸣音。未明确诊断。需要优先检查的项目包括（）。

A.胸部CT

B.支气管镜

C.肺功能

D.痰细菌培养及药敏

E.动脉血气分析

F.心脏彩色超声
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单项选择题

On May 29, 1973, Thomas Bradley, a black man, was elected mayor of Los Angeles. Los Angeles is the third largest city in the United States, with a population of three million. About sixteen percent of the city’s population are black.
News of this election appeared on the front pages of newspapers everywhere in the United States. Here is how one major newspaper reported the event.
LOS ANGELES ELECTS BRADLEY MAYOR UNSEATING YORTYBLACK WINS 56% OF VOTES
Bradley called his victory over Yorty "the fulfillment of a dream". During his childhood and youth, people had kept telling him, "You can’t do this, you can’t go there, because you are a Negro. " Nevertheless he had won a decisive victory over a man who had been won 43.7 percent.
Los Angeles voters have had many opportunities to judge. Thomas Bradley had to form an opinion of him. The son of a poor farmer Texas, he joined the Los Angeles police force in 1940. During his twenty-one years on the police force he earned a law degree by attending school at night. He was elected to the city council ten years ago.
At the time of the Los Angeles election, three other American cities already had black mayors, but none of those cities had as large a population as Los Angeles. Besides, the percentage of blacks in those other cities was much larger. Cleveland, Ohio, had thirty-six percent black when Carl Stokes was elected mayor of Cleveland in 1967. In the same year Richard Hatcher was elected mayor of Cary. In Newark, New Jersey, sixty percent of the population were black when Kenneth Gibson was elected in 1970. Thus election of a black mayor in those cities was not very surprising.
In Los Angeles thousands of white citizens voted for Thomas Bradley because they believed he would be a better mayor than the white candidate. Bradley had spent forty-eight of his fifty-five years in Los Angeles. Four years ago Bradley lost mayoral election to Yorty. This time Bradley won.

In the author’s opinion, it was surprising that ______.

A. the whites would vote for a black mayor
B. a black mayor would be elected in such a large city
C. a black from a poor farmer’s family could be elected mayor of Los Angeles
D. there would be so many black mayors
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