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- 问题详情：TwoAmericanscientiststoldthepeopleinindustrialnationsthattheywouldbemuchhealthieriftheyatemoreofthesamekindoffoodseatenbyhumanslivingmorethan10,000yearsago．Thescientistssaythatthehumanbodyhaschangedverylittlesincehumanfirstappearedonearth,butt...
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