The increase in the U. S. life expectancy is mostly due toA.declining death rates from hea

外语类 公共英语 已帮助 人

The increase in the U. S. life expectancy is mostly due to

A.declining death rates from heart disease, cancer and stroke.

B.increasing life expectancy rates in some other countries.

C.a rise in the rate of chronic disease.

D.a declining birth rate.

热搜:在公制与英制换算中,1in等于()。