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                        平均寿命的增加对个人和整个社会引起什么样的

                        bbin注册网址ZAIHENDUOGUOJIA,PINGJUNSHOUMINGZAIBUDUANZENGJIA。ZHEIJIANGDUIGERENHEZHENGGESHEHUIYINQISHENMEYANGDEWENTI?TIXIEJIANYI。 YINGWENTIMU In many countries, average life expectancy has been increasing. What problems will this cause for ind...

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