如图表示人在吸气时膈肌的运动情况此时膈肌所处的状态胸廓容积和肺内气压的变化分别是a.收缩缩小下降b.舒张扩大下降c.舒张扩大 Template




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tomski如图表示人在吸气时膈肌的运动情况此时膈肌所处的状态胸廓容积和肺内气压的变化分别是a.收缩缩小下降b.舒张扩大下降c.舒张扩大 coloring