一个人的寿命长短由诸多因素决定，全活习惯和环境起着重要作用。一位美国学者经过调查统计．9出了如下参考题。格72岁作为入的平均寿命，您。根据自己的情况加加减减；如果您是男性，诸城去3岁，女性则加上4岁。如果您生活在一百万人Dto大都市里．减2岁。脑力劳动者减3岁．如 The length of a person’s life depends on many factors, all living habits and the environment play an important role. An American scholar after investigation statistics. 9 out of the following reference questions. Latitude 72 years as the average life expectancy, you. Add and subtract according to their own situation; if you are a man, Zhucheng to 3 years old, women plus 4 years old. If you live in one million people in the metropolis of Dto. Minus 2 years old Mental workers minus 3 years old. Such as