The above utility function also has the property of diminishing marginal utility for each commodity.
上面的效用函数也有每种商品边际效用递减的性质。
Our products, up to 300 yuan for each commodity wholesale, minimum 5 to take over 800 yuan, not limited quantity.
本店商品300元起批，可以混批，每种商品最低5个起拿，800元以上不限制数量。
Our products, up to 200 yuan for each commodity wholesale, minimum 10 to take over 300 yuan, not limited quantity.
本店商品200元起批，可以混批，每种商品最低10个起拿，300元以上不限制数量。
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