加强人口管理的方法很多，本文提出了四个主要方法，即：1、控制人口数量，提高人口素质，调整人口结构；
There are a lot more methods to strengthen PM, four of which are put forward in the thesis: 1. Controlling population quantity, improving population quality, adjusting population structure; 2.
加强人口管理的方法很多，本文提出了四个主要方法，即：1、控制人口数量，提高人口素质，调整人口结构；
There are a lot more methods to strengthen PM, four of which are put forward in the thesis: 1. Controlling population quantity, improving population quality, adjusting population structure; 2.
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