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The increase in the U.S. life expectancy is mo

2022-08-05 19:50:04 问答库 阅读 171 次

问题详情

The increase in the U.S. life expectancy is mostly due to
A.increasing life expectancy rates in some other countries。
B.declining death rates from heart disease.cancer and stroke
C.a rise in the rate of chronic disease.
D.a declining birth rate.请帮忙给出正确答案和分析,谢谢!

参考答案

正确答案:A

考点: