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某工厂生产冶金模具，去年按定价的80％出售，获得了20％的利润率
【例13】（2019深圳）某工厂生产冶金模具，去年按定价的80％出售，获得了20％的利润率；今年由于工厂迁址，使得成本下降。按原定价的75％出售，可获得25％的利润率。去年成本与今年成本之比为： Ａ. 4:3 Ｂ. 10:9 Ｃ.16:9 Ｄ.75:64
经济利润问题专题知识精讲与历年真题解析22/29
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