Generally speaking, the primary industry acts as a reservoir of surplus labor force on employment, although it can absorb a large number of labor force on the surface, but its effective absorption capacity is limited in fact; the second industry and the third industry is the main industry to absorb labor force, and under the same economic scale (that is, the same GDP), the higher the proportion of the third industry, especially the tertiary industry, the greater the population carrying capacity of the labor force in a certain region.
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The second industry and the third industry are the main industries to absorb the labor force, and should focus on development