女性，22岁，自幼因麻疹后咳喘迁延不愈。近年来发作趋于频繁，程度亦趋严重。1周前感冒后哮喘发作一直未能缓解而住院。体检：患者神志淡漠，呼吸困难，呈端坐位，吸氧下发绀不明显。两肺满布哮鸣音，心率126次／分，律齐，有奇脉
在病程中发现患者出现颈部皮下气肿，说明患者可能存在的并发症是（）
A.气胸
B.肺气囊肿
C.间质性肺气肿
D.纵隔气肿
E.肺大疱
参考答案：D
On the way to school, a little boy found a cocoon(茧) of a butterfly and watched it everyday. One day, it started to break through a small hole in the cocoon, but it 26 greatly. Finally, it seemed it couldn’t succeed. The boy felt 27 for the butterfly because he knew it was going to die if it didn’t get out. So he ran into the house and got a pair of 28 and cut the cocoon a little. The butterfly came out and was free. The only strange thing was that the butterfly has a swollen(肿胀的) body and dry 29 . The boy kept waiting for the swelling to go down and for the wings to grow, but 30 didn’t. The butterfly crawled（爬）around and unable to 31 and then it died an early death. Therefore, he learnt that the butterfly was supposed to struggle to get out of the cocoon. In fact, the struggle to get out of the cocoon 32 the fluid(液) out of the body and it its wings. 33 the struggle, the butterfly couldn’t grow, and would 34 fly. By trying to help the butterfly, the boy 35 hurt it.
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