@lyunho: 항상 흥미롭고 새로운 상식,

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RE: RE: 동전옆면이 톱니모양인 이유(Gresham's law)

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RE: 동전옆면이 톱니모양인 이유(Gresham's law)

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2018-05-05 05:55

항상 흥미롭고 새로운 상식, 지식을 주셔서 감사합니다^^

2018-05-05 05:55

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@lyunho: 항상 흥미롭고 새로운 상식,