多样性(政治)
寿命
政治
寿命延长
扩展(谓词逻辑)
政治学
政治经济学
社会学
心理学
老年学
法学
医学
计算机科学
程序设计语言
摘要
Negative stereotypes of old age have been strongly entrenched in our society, but they are now giving way to more realistic images of the diversity among older people, a diversity that is substantiated by the findings of social scientists. If a dramatic extension of the life-span occurs in the next few decades, the political, economic, social, and ethical problems for the society at large will be enormous; and it cannot be predicted whether the status of the aged will become better or worse.
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