If a certain toy store's revenue in November was $$\frac{2}{5}$$ of its revenue in December and its revenue in January was $$\frac{1}{4}$$ of its revenue in November, then the store's revenue in December was how many times the average (arithmetic mean) of its revenues in November and January?
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A$$\frac{1}{4}$$
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B$$\frac{1}{2}$$
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C$$\frac{2}{3}$$
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D2
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E4
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正确答案: E