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食物按来源分哪两类
更新时间: 2020-10-28 00:00:00  

食物按来源分为动物性食物,植物性食物两类,食物是指能够满足机体正常生理和生化能量需求,并能延续正常寿命的物质,对人体而言,能够满足人的正常生活活动需求并利于寿命延长的物质称之为食物。

食物通常是由碳水化合物、脂肪、蛋白质、水构成,能够藉进食或是饮用为人类或者生物提供营养。

关键词: 食物 来源

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