單項選擇題More than（）of the population in the United States lived in city areas in 1988.
A.60%
B.75%
C.90%
D.50%
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1.單項選擇題One of the reasons for the growth of population in Florida is because of its（）
A.expanding economy
B.large number of Cuban-Americans
C.climate
D.exotic food
2.單項選擇題The three states that have seen the fastest growth in population in the past 20 years are（）
A.California,Arizona and New Mexico
B.California,Florida and Nevada
C.New Mexico,Texas and Florida
D.Arizona,Nevada and Florida
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Aboriginal and Torres Strait Islander people constitute（）of Australia.s population.
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The most serious potential natural disasters in New Zealand are（）
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Western Australia is the biggest Australian state,but its population is only（）of the country.s population.
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