John Snow was a famous physician. Seeing many people died of cholera, he decided to help them. Cholera was a deadly disease of its day. Nobody knew how this happened and how to treat it. John Snow s...
JOHN SNOW DEFEATS “KING CHOLERA”一文主要内容的概括
John Snow was a famous physician. Seeing many people died of cholera, he decided to help them. Cholera was a deadly disease of its day. Nobody knew how this happened and how to treat it. John Snow s...