A--overpopulation B--under population C--working population D--popul

游客2023-09-24  21

问题    A--overpopulation
   B--under population
   C--working population
   D--population waiting for employment
   E--urban population
   F--rural population
   G--population reproduction
   H--population increase
   I--population decrease
   J--population base
   K--population distribution
   L--population density
   M--population quality
   N--population pyramid
   O--population statistics
   P--population theory
   Q--population studies

选项

答案 C,L

解析
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