论文部分内容阅读
目前,在工业化国家,人的平均寿命约为70岁,而100年前约为25～30岁。自从有人类以来,人们就渴望长寿,梦想永葆青春。
At present, the average life expectancy of people in industrialized countries is about 70 years, compared with about 25 to 30 years ago 100 years ago. Since human beings, people long for longevity and dreams for everlasting youth.