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【摘 要】
：
人,从生到死,无一例外都要放屁。屁为“五谷杂粮之气”。正常人每天要放5~10次屁,约排出500毫升的“气”。如果超过1200毫升即为放屁过多,医学上称为“矢气过多症”。人为什
【出 处】
：
科学养生
【发表日期】
：
2006年01期
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