患儿，女，4岁，因"反复呼吸道感染伴气促、活动耐量下降半年"来诊。查体：体温38.2℃，呼吸42次／分，心率130次／分，血压115／62mmHg，发育不良，口唇无紫绀，心律齐，P2亢进，胸骨左缘第二肋间可闻及2／6级连续性杂音，双下肺闻及湿啰音，下肢无水肿。
患儿可能的诊断是（）
A.动脉导管未闭合并心力衰竭或呼吸道炎症
B.房间隔缺损并合并心力衰竭或呼吸道炎症
C.室间隔缺损合并心力衰竭或呼吸道炎症
D.主肺动脉间隔缺损合并心力衰竭或呼吸道炎症
E.肺血减少的紫绀型先天性心脏病合并心力衰竭或呼吸道炎症
F.特发性肺动脉高压合并心力衰竭或呼吸道炎症
参考答案：A, D
解析：根据患儿有心脏杂音，说明有心内畸形，可排除F选项，根据题干中对心脏杂音部位的描述，可排除B、C选项，患儿P2亢进，说明肺动脉压高，是肺血多型先天性心脏病，故排除E选项。
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| I came to India about ten years ago to find a village in which I could live and write. However, it was many months before I 1 down happily in this Himalayan village. I 2 alot oftimelooking for the 3 village. Yet no such thing exists. 4 were quite different. But the villages I stayed in had much in 5 -dirt,poverty, no 6 . Often the villagers themselves were 7 about why I had come. I had 8 my work as a political newspaperwriter 9 my ideas had changed. I had 10 to believe that what was happening in the 11 World was more important than anything else. But to understand how three quaqters ofthe 12 peoplelive,and how their 13 might affect ours,lfelt that I first had to try and 14 their way of life. 15 I chose a mountain village because it was a little 16 than those in the plains. I took the bus from town along a bumpy(崎岖) road. Then came a 17 down a steep path to the river. After that I began the climb into the hills. WheneverI stopped to 18 my breath, I saw a beautiful 19 . After several hours' walk the 20 came into sight. | ||||
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