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提问人:网友z*****n 发布时间:2023年3月31日 23:17
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北朝的农学家贾思勰著有《齐民要术》,是我国第一部完整的农书。()

北朝的农学家贾思勰著有《齐民要术》,是我国第一部完整的农书。()

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