The distance between a planet and the earth is 4*$$10^{13}$$ km, and the distance between the earth and the moon is 2.5*$$10^{5}$$ km. On a map, the distance between the earth and the moon is 1 cm. What is the distance, in kilometer, between the planet and the earth on the map?
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A100 km
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B400 km
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C800 km
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D1200 km
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E1600 km
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正确答案: E