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问题 单项选择题 A1/A2型题

可引起第二心音A增强的是（）

A.动脉粥样硬化

B.主动脉瓣狭窄

C.主动脉瓣关闭不全

D.肺动脉高压

E.左心功能不全

答案

参考答案：A

解析：第二心音强度与循环阻力的大小、血压的高低和半月瓣的解剖改变相关，体循环阻力高或血流量增多时S增强。

完形填空

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In most cities,  小题1:  or poor, it is the less well off that are most at risk from floods and natural disasters. It was the poor of New Orleans, nearly a  小题2: (three)of the population, who lived in the lowest-lying parts of the city and 小题3: (suffer)most from Katrina’s(卡特里娜飓风) wrath (愤怒). 小题4:  (similar), it was the urban poor of Honduras(洪都拉斯) and its neighbors who were struck hardest  小题5: Hurricane Mitch in 1998. And it is the people of the slums (贫民窟) more widely in Latin America  小题6:are most capable of being attacked.

In some places, too little water, not too much, is the problem. China’s thirst for industry and 小题7:  (irrigate) has combined with climate change to drain the aquifers(蓄水层). Droughts seem to be ever more frequent in northem China, and southern cities such as Guangzhou are also affected. Rivers are drying up: the Yellow River now flows to the sea for only  小题8: few weeks a year. And the rain,when it comes, is intensely acid. To make matters 小题9: (bad), the glaciers on which both China 小题10:India partly depend are melting. Any benefits from extra water supplies will be short-term, and damaged by floods.
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单项选择题 A1型题

患者家属加入医患关系中带来的负面效应是（）

A.加重了医务人员的责任

B.增加了对医务人员的监督

C.有时会损害患者正当权益

D.出现了从属关系

E.加大了社会意义
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