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正归一和反归一有什么区别

更新时间: 2020-11-05 00:00:00     

正归一和反归一区别是:正归一问题是求几个单一量是多少,反归一是求包含多少个单一。归一问题,在解题过程中,首先求出一个单位的数量(即单一量),然后再根据题目的要求,用乘法算出若干个单一量,即归总。这就是正归一的解题规律,而先求单一量,再用除法算出总量里包含多少个单一量,这就是反归一的解题规律。

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