题目内容

阻塞性肺气肿病人，为改善肺功能进行呼吸功能锻炼，其要点是

A. 加强胸式呼吸+用鼻吸气，经口用力快速呼气
B. 加强腹式呼吸+用鼻吸气，经口缓呼，呼气时口唇收拢
C. 加强腹式呼吸+用鼻吸气，经口用力快速呼气
D. 加强胸式呼吸+经鼻用力呼气
E. 同时加强胸式和腹式呼吸

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