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