大豆產量低，要種高產作物解決口糧。所以肚子飽了，蛋白質缺乏。自進口美豆之後才解決了蛋白質問題。

來源: QinHwang 於 2025-04-06 20:48:55 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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