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题目材料：
For which of the following pairs of years did the ratio of total donations from individuals to total donations from organizations for one of the years exceed that for the other year by the greatest amount?
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A.2007 and 2006
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B.2008 and 2006
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C.2009 and 2007
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D.2010 and 2006
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E.2010 and 2009
E显示答案
