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单项选择题A 68=year-old man,with chronic cough and sputum production for 17 years,had felt a progressive dyspnea slnce 3 years. His chest X-ray film showed overinflation of lungs and descended diaphragms. The peripheral vasculature of the lungs was diminished. Which dis-ease the patient suffered from most possibly（）

A、Pulmonaryemphysema

B、Chronicpulmonaryheartdisease

C、Pulmonaryarterialhypertension

D、Asthma

E、Bronchoectasis

  • A

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