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水占人体的百分之几
更新时间： 2020-09-23 00:00:00  

水占人体的百分之七十。人体大部分是水造的。水占人体重量的70%，婴儿体内含水达80%。人体血液中所含水份占83%，水在肌肉中占76%；在心脏、肺中占80%；在肾中占83%；肝脏中占68%；脑中占75%。即使看来很结实的骨头也有20%以上的水。

关键词： 人体 百分之

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