It is cumulative mortality rate, and also


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送交者: blackbox 于 2006-07-18, 13:58:35:

回答: 有20%的人活90以上,这不太符合一般的常识吧? 由 Enlighten 于 2006-07-18, 12:58:26:

it is difficult to believe the figure as you don’t see many of very old people around you, neither in the community you live, because they all live in nursing home.



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