病人男 ,65 岁 , 慢性阻塞性肺气肿 10 余年 , 为改善通气状况 , 检查病人做腹式呼吸锻炼 , 正确的方法是 A. 每次进行 30~60 分钟 B. 吸气时间短 , 时间长 C. 吸气时收腹 , 时挺腹 D. 用鼻吸气 E. 用鼻
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E
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