微量元素的定义是什么?"细胞中所有微量元素的总和少于3%""占生物体总重量万分之一以下的元素都是微量元素"以上两句话都对吗?为什么若严格的给微量元素下个定义,应该是什么?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 22:37:51
![微量元素的定义是什么?](/uploads/image/z/11636752-40-2.jpg?t=%E5%BE%AE%E9%87%8F%E5%85%83%E7%B4%A0%E7%9A%84%E5%AE%9A%E4%B9%89%E6%98%AF%E4%BB%80%E4%B9%88%3F%22%E7%BB%86%E8%83%9E%E4%B8%AD%E6%89%80%E6%9C%89%E5%BE%AE%E9%87%8F%E5%85%83%E7%B4%A0%E7%9A%84%E6%80%BB%E5%92%8C%E5%B0%91%E4%BA%8E3%25%22%22%E5%8D%A0%E7%94%9F%E7%89%A9%E4%BD%93%E6%80%BB%E9%87%8D%E9%87%8F%E4%B8%87%E5%88%86%E4%B9%8B%E4%B8%80%E4%BB%A5%E4%B8%8B%E7%9A%84%E5%85%83%E7%B4%A0%E9%83%BD%E6%98%AF%E5%BE%AE%E9%87%8F%E5%85%83%E7%B4%A0%22%E4%BB%A5%E4%B8%8A%E4%B8%A4%E5%8F%A5%E8%AF%9D%E9%83%BD%E5%AF%B9%E5%90%97%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E8%8B%A5%E4%B8%A5%E6%A0%BC%E7%9A%84%E7%BB%99%E5%BE%AE%E9%87%8F%E5%85%83%E7%B4%A0%E4%B8%8B%E4%B8%AA%E5%AE%9A%E4%B9%89%2C%E5%BA%94%E8%AF%A5%E6%98%AF%E4%BB%80%E4%B9%88%3F)
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