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物种起

That many breeds produced by man have to a large extent the character of natural species, is shown by the inextricable doubts whether many of them are varieties or aboriginally distinct species.

培育出的许多品种在很大程度上具有自物种的特征,这一点可以从无法摆脱的疑出, 其许多品种是变种还是原始独特的物种。

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