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Scientistshavelearnedalotaboutthekindsoffoodpeopleneed....
問題詳情:Scientistshavelearnedalotaboutthekindsoffoodpeopleneed.Theysaythatthereareseveralkindsoffoodthatpeopleshouldeateveryday.Theyare:(1)greenandyellowvegetablesofallkinds;(2)citrus(柑橘)fruitsandtoma...
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