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为什么肉比菜贵

更新时间: 2020-09-19 00:00:00     

1、根据林德曼定律,食物链每一级之间能量的利用率只有10%,由此可知长一斤肉需要消耗数倍重量的食物;另外畜禽生长周期也远长于蔬菜,单位时间生产成本高,最终表现为价格高;

2、影响价格的因素:供求。

关键词: 为什么

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