The dependency ratio of the elderly population means
选项:
A:Percentage of the elderly population to the labour force population
B:Percentage of the labour force population which serve for older persons to the total population
C:Percentage of the labour force population which serve for older persons to the elderly population
D:Percentage of the elderly population to the non-labour population
E:Percentage of the elderly population to the total population
发布时间:2024-04-17 17:41:22