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题目材料：
Of the following which best describes how the number of United States residents that were in the age-group"5 years and younger"changed from 1900 to 1940?
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A.It increased by more than 50 percent.
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B.It increased by less than 50 percent but more than 5 percent.
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C.It changed by less than 5 percent.
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D.It decreased by less than 50 percent but more than 5 percent.
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E.It decreased by more than 50 percent.
B显示答案
