慢性阻塞性肺气肿患者就诊时最常见的主诉是（）
A.胸痛
B.发热、咳痰
C.干咳
D.活动后气短
E.体重减轻
参考答案：D
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A. interruption
B. instruction
C. consideration
D. convenience
小儿肥胖症
