A-A+
Over the last five decades life expectancy ha
问题详情
Over the last five decades, life expectancy has increased globally by______ years.
A．19
B．45
C．65
D．5
参考答案
正确答案：A
解析：本题是数字推断题，根据文中“Over the last fifty years，life expectancy has increased globally from forty six years to sixty five．”可得65-46=19，即增加了19年，选A。life expectancy平均寿命
