人口老化現象的相關文章
人口老化現象的相關公司資訊
![Population ageing - Wikipedia, the free encyclopedia](https://www.iarticlesnet.com/pub/img/site/s_23.jpeg)
Population ageing - Wikipedia, the free encyclopedia
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日期:2024-08-06
Population ageing is a phenomenon that occurs when the median age of a country or region rises due to rising life expectancy and/or declining birth rates....看更多