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畜牧人

標(biāo)題: 區(qū)別 [打印本頁(yè)]
作者: 忘憂草    時(shí)間: 2008-10-16 00:22
標(biāo)題: 區(qū)別
原種豬
純種豬

如何區(qū)別？
二元的元什么意思？
請(qǐng)搞育種的友人幫助解疑
感謝



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