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單項(xiàng)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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單項(xiàng)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

單項(xiàng)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