男性，63岁。慢性咳嗽、咳痰近20年，每年秋冬发作，至翌年春暖季节方有缓解。偶有痰血。年轻时患肺结核，经异烟肼、链霉素和对氨基水杨酸钠治疗近2年，以后胸片随访为两肺散斑片结节影伴少量纤维条索状病灶。5年前发现高血压病，心电图示左心室高电压。重度吸烟（每日超过40支）已经30余年。
如果患者病情进展或有继发感染，预计其对气体交换的影响最先出现的应是（）。
A.低氧血症
B.高碳酸血症
C.低氧血症伴高碳酸血症
D.低氧血症伴乳酸血症
E.高碳酸血症伴失代偿性呼吸性酸中毒
参考答案：A
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| Twelve years ago, my mother gave birth to the beautiful little girl. 1 , we were later given the 2 that this little girl, who was three and a half month old, would only have 14 days on earth. It's hard to understand what kind of 3 you have when you find out that you're 4 something that you don't even know. As time went on, the number of days kept growing, which gave us 5 . When the doctors said that we could take her home, that was 6 reality hit. We had no 7 . I'm from a small town with small hospitals, but when you don't have money, you just don't 8 it. My mother tried for days to get money, but nothing 9 each time. A caseworker (社会工作者) was even doing her best. It's 10 that it almost felt as if we had to 11 a baby from the hospital. One day the caseworker walked into her boss's office to 12 again. As she walked out, 13 down yet again, out of no where a man walked up to her. He 14 her a handful of money and said, "Please give this to the lady in 15 , so she can take her daughter home." She looked down at her hand with tears in her eyes. As she looked back up to thank him, he was 16 . They searched all over the hospital and he was nowhere to be 17 . Thanks to the guy that I will 18 know, we could take home that 19 baby girl that was only given 14 days to live, and celebrated her 12th birthday yesterday. I am grateful to this man and feel that his act of 20 should be shared with everyone. | ||||
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