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你会用肛门呼吸吗?以后肛门呼吸能救你的命呢…
你是否还记得你初来这个世界时做的第一件事是什么?不记得了?再想想!深吸一口气!没错,就是呼吸,这所有人与生俱来的本能。当你还在妈妈肚子里时,妈妈的循环系统带来了富含氧气的新鲜血液,你通过胎盘和脐带从母体获取氧气;而当你呱呱降生时,虽然肺部还充满着液体 ...
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