![Aging of Population in China作文]( "Aging of Population in China作文")
- Manycountrieswillexperienceagingpopulationsinthenextcenturybecauseofdecliningbirthandmortalityrates.Chinawillsoonjointheirranks.Accordingtostatistics,theagingofChina'spopulationwillapproachitspeakbythemiddleofthenextcentury,withthepercentageofthe...
- 19649
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