1.肋骨吸气时向____向______运动呼气时下降,向____向________运动肋间肌 吸气时 ________,呼气时_______2.(1)当你下水游泳时,当水超过胸部以后,你会感到呼吸很困难,这是为什么?(2)当我们要屏住
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![1.肋骨吸气时向____向______运动呼气时下降,向____向________运动肋间肌 吸气时 ________,呼气时_______2.(1)当你下水游泳时,当水超过胸部以后,你会感到呼吸很困难,这是为什么?(2)当我们要屏住](/uploads/image/z/3444288-24-8.jpg?t=1.%E8%82%8B%E9%AA%A8%E5%90%B8%E6%B0%94%E6%97%B6%E5%90%91____%E5%90%91______%E8%BF%90%E5%8A%A8%E5%91%BC%E6%B0%94%E6%97%B6%E4%B8%8B%E9%99%8D%2C%E5%90%91____%E5%90%91________%E8%BF%90%E5%8A%A8%E8%82%8B%E9%97%B4%E8%82%8C+%E5%90%B8%E6%B0%94%E6%97%B6+________%2C%E5%91%BC%E6%B0%94%E6%97%B6_______2.%EF%BC%881%EF%BC%89%E5%BD%93%E4%BD%A0%E4%B8%8B%E6%B0%B4%E6%B8%B8%E6%B3%B3%E6%97%B6%2C%E5%BD%93%E6%B0%B4%E8%B6%85%E8%BF%87%E8%83%B8%E9%83%A8%E4%BB%A5%E5%90%8E%2C%E4%BD%A0%E4%BC%9A%E6%84%9F%E5%88%B0%E5%91%BC%E5%90%B8%E5%BE%88%E5%9B%B0%E9%9A%BE%2C%E8%BF%99%E6%98%AF%E4%B8%BA%E4%BB%80%E4%B9%88%3F%EF%BC%882%EF%BC%89%E5%BD%93%E6%88%91%E4%BB%AC%E8%A6%81%E5%B1%8F%E4%BD%8F)
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