问题
单项选择题
二尖瓣关闭不全患者，如能听到杂音，该杂音性质是（）
A.胸骨左缘第2肋间连续机器样杂音
B.胸骨右缘第二肋间收缩期喷射性杂音
C.胸骨左缘第3、4肋间粗糙收缩期杂音
D.心尖区全收缩期吹风样杂音
E.胸骨右缘第二肋间舒张期叹气样杂音
答案
参考答案：D
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二尖瓣关闭不全患者，如能听到杂音，该杂音性质是（）
A.胸骨左缘第2肋间连续机器样杂音
B.胸骨右缘第二肋间收缩期喷射性杂音
C.胸骨左缘第3、4肋间粗糙收缩期杂音
D.心尖区全收缩期吹风样杂音
E.胸骨右缘第二肋间舒张期叹气样杂音
参考答案：D
| 阅读下面短文，把A-D四个句子填入文中空缺处（1-4），使短文内容完整正确，然后完成第5题。 |
| Different weather makes people feel different. It influences (影响) health, intelligence (智力) and feelings. In August, it is very hot and wet in the southern part of the United States. People there have heart trouble and other kinds of health problems during this month In the Northeast and the Middle West it is very hot sometimes and very cold at other times. 1. The weather can also influence intelligence. For example, in a 1983 report by scientists, the IQ (智商) of a group of students was very high when a very strong wind came, but after that, their IQ was 1096 below. The wind can help people have more intelligence. 2. Students in many schools of the United States often get worse on exams in the hot months of the year (July and August). 3. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel unhappy during cold weather. 4. Low air pressure (压力) may make people forgetful. People leave more bags on buses and in shops on low pressure days. People feel best at a temperature of about 18℃. Are you feeling sad, tired, forgetful, or unhappy today? The weather may be the reason. |
| A. People in these places have more heart trouble after the weather changes in February or March. B. But fat people may have a hard time in hot summer. C. Very hot weather, on the other hand, can make it lower. D. Weather also has a strong influence on people's feelings. |
| 5. The best title of this passage is ______. |
[ ] |
| A. Weather Influences People's Life B. Weather and IQ C. Weather and Feelings D. Health and Intelligence |