JOHNSNOWDEFEATS“KINGCHOLERA”ReadingFindoutthemainideaofeachparagraph:Para.1Para.2Para.3Para.4Para.5&6Para.7Pollutedwatercarriedthedisease.Finally“KingCholera”wasdefeated.Heneededtoprovethesecondtheorywascorrect.JohnSnowwantedtousehisknowledgetosolvecholera.Hegotinterestedintwotheoriesexplain...

时间:2024-11-13 23:12栏目:幼儿/小学教育