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英语短文欣赏:Scientific American

英语短文欣赏:Scientific American

Forty-sixmillionyearsago,northwestMontanawasatropicalforestofgiantferns,conifersandginkgos.Tinyprimateslivedthere,asdidrhinosandhorsesandcrocs.Alongwithsomelesscharismaticcreatures:mosquitoes.Oneoftho......
2021-10-24