The problem of population is mainly man-made. [br] Now, for human beings, eighty

游客2023-09-02 59

问题 The problem of population is mainly man-made. [br] Now, for human beings, eighty, ninety are coming to be recognized as

选项

答案 a normal age

解析第6段倒数第2句，现在80-90岁的人被称为正常寿命。

转载请注明原文地址:http://tihaiku.com/zcyy/2979879.html

相关试题推荐

随机试题

最新回复(0)

Kunzgaveupsoftwareengineeringmainlybecauseheearnedlessthanthoseinla