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In 1993 the average (arithmetic mean) price per card for all greeting cards sold was $1.25. For which of the following occasions was the number of cards sold in 1993 less than the total number of cards sold that year for occasions other than the ten occasions shown?
Indicate all such occasions.
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A.Christmas
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B.Valentine's Day
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C.Easter
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D.Mother's Day
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E.Father's Day
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F.Graduation
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G.Thanksgiving
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H.Halloween
C,D,E,F,G,H显示答案
