According to a survey in 1980,Chinahas an aging population of 80 million peopleover 60 years of age,which will increase to130 million toward the end of the presentcentury,making China a country with themost elderly pe...According to a survey in 1980,Chinahas an aging population of 80 million peopleover 60 years of age,which will increase to130 million toward the end of the presentcentury,making China a country with themost elderly people in the world.Due tothe lengthening of life expectancy展开更多
文摘According to a survey in 1980,Chinahas an aging population of 80 million peopleover 60 years of age,which will increase to130 million toward the end of the presentcentury,making China a country with themost elderly people in the world.Due tothe lengthening of life expectancy
