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即使被它淹没也不会窒息，这是什么神奇液体？
source link: https://tech.sina.com.cn/d/a/2020-05-04/doc-iirczymi9801590.shtml
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来源：中科院物理所撰文|Mirror最没存在感的空气，总是在我们游泳呛水的时候提醒我们它有多重要——如果无法及时浮出水面呼吸空气，就会有窒息的危险。这是所有哺乳动物的致命弱点，即使是水生哺乳动物也做不到在水下呼吸，必须时不时浮出水面猛吸几口
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