单项选择题

Which of the following regions in the world will witness the sharpest drop in life expectancy

A．Latin America.
B．Sub-Saharan Africa.
C．Asia.
D．The Caribbean.
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单项选择题
According to the news, which country will experience small life expectancy drops
A．Burma.
B．Botswana.
C．Cambodia.
D．7haUand.
单项选择题
This fiscal year' s deficit is less than GBO predicted in March because ______
A．the tax cut has been much less than originally planned
B．Bush administration has reduced the federal expenditure
C．a better economy has increased tax income
D．CBO's estimate in March was based on a wrong assumption
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