等平均寿命到100岁的时候，会发现更多的老年病。

来源: TBz 于 2017-08-31 11:31:03 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.