Because ut takes 4 kilos of grain protein to produce half a
題目：
Because ut takes 4 kilos of grain protein to produce half a kilo of meat pro
解答：
吃4千克的穀物中所含有的蛋白質能夠生產出半千克肉蛋白質
題目：
Because ut takes 4 kilos of grain protein to produce half a kilo of meat pro
解答：
吃4千克的穀物中所含有的蛋白質能夠生產出半千克肉蛋白質
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