期望图(expectancy chart)
A.Life expectancy goes on rising forever.
B.There could be further increases in life expectancy.
C.Life expectancy has slowed down since 1950s and it will stop.
D.Life expectancy in Japan doubles what it was 200 years ago.
The increase in the U.S.1ife 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.
According to the news, which country will experience small life expectancy drops?
A.Burma.
B.Botswana.
C.Cambodia.
D.7haUand.
Modern medical advances ______ the average life expectancy by several years.
A.expanded
B.spread
C.extended
D.enlarged
[ A] application
[ B] endurance
[ C] expectancy
[ D] extension
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