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题目材料：
UNITED STATES POPULATION AND COLLEGE ENROLLMENT BY AGE AND GENDER, 1973 AND 1993
Of the four college enrollment categories shown, how many categories accounted for more than $$\frac{3}{8}$$ of the total Dcollege enrollment in 1973?
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A.None
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B.One
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C.Two
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D.Three
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E.Four
B显示答案
