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题目材料：
For the high school enrollment in 2000, which of the following is closest to the ratio of the enrollment of population group $$A$$ to the sum of the enrollments of population groups $$B$$ and $$C$$?
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A.3 to 1
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B.5 to 1
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C.6 to 1
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D.7 to 2
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E.9 to 2
D显示答案
