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题目材料：
Notes:
(1) The total population was 260,341,000.
(2) Age-group determined by age, in years, at last birthday.
The median age of the population is in which of the four age-groups shown?
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A.17 and younger
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B.18 to 24
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C.25 to 44
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D.45 and older
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E.It cannot be determined from the information given.
C显示答案
