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题目材料：
In 1998, if one-half of the occupational injuries in the combine 34-and-under age-groups were incurred by men, what was the number of occupational injuries incurred by men in the combined 35-and-over age-groups?
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A.33,500
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B.31,900
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C.30,500
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D.25,400
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E.21,700
D显示答案
