问题
单项选择题
列哪个药物防治哮喘作用机制与其余药物不同（）。
A.福莫特罗
B.沙丁胺醇
C.特布他林
D.布地奈德
E.克仑特罗
答案
参考答案：D
解析：布地奈德为吸入性糖皮质激素，局部应用抗炎作用和对哮喘的疗效与二丙酸倍氯米松相近，适用于支气管哮喘和气道高反应状态。其余四个药物均是β2受体激动剂。
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列哪个药物防治哮喘作用机制与其余药物不同（）。
A.福莫特罗
B.沙丁胺醇
C.特布他林
D.布地奈德
E.克仑特罗
参考答案：D
解析：布地奈德为吸入性糖皮质激素，局部应用抗炎作用和对哮喘的疗效与二丙酸倍氯米松相近，适用于支气管哮喘和气道高反应状态。其余四个药物均是β2受体激动剂。
根据短文内容，从下框的A----E选项中选出能概括每一段主题的最佳选项。选项中有一项为多余选项。 
May 19,1991 was a red letter day for the people of Nanxi Town,Jinzhai County,in the Dabie Mountain area of Anhui Province．On that day the townpeople cut the ribbon at the inauguration（落成典礼）of a primary school,the first in China set up with money raised in a national campaign for educational development．They were happy to see their children,who had been deprived（剥夺）of an education because of poverty,entering school．
The Dabie Mountain range lies at the juncture of Hubei,Henan  and Anhui provinces．Jinzhai County,located in the highest section of the mountain range,has within its boundaries more than 100 peaks each exceeding1,000 meters in height．Due to the unfavorable natural conditions,some people in the county are unable to feed and clothe themselves adequately no matter how hard they work throughout the year．About 1,500 children have dropped out of school because their parents are unable to pay the fees for them．
Huangpin,a povert-stricken village situated in the a cold area 750 metres above sea level,is tipical of the county．Among the village’s 224 children between the  ages of 7 and 15,there are 80 who are unable to go to school because of economic problems．Some pupils have to cut firewood after school to support themselves．Some leave school to look after cattle and pigs because they cannot afford the 20 yuan necessary for buying books．
The county’s leaders have long realized that it is very difficult for county in which 36%of the people are illiterate（文盲）to free itself of poverty．In order to change this situation,they have spent 1/3 of the county’s tax income on education for several years’ running．In order to enrol（招收）more children,teachers from some schools have climbed hills to encourage people to send their children to school．Some teachers have even paid their students’ fees from their own pockets,although their salaries are very low．
According to statistics（统计数据）in China,more than one million school-age children are unable to go to school because of economic problems．In October 1989,the China Foundation for the Development of Children a nd Youth appealed to the country and the world to raise money for the education of children in poverty-stricken areas．Since children are the future of the country,this project is called “The Hope Project”． |