概括如下：
John Snow was a well-known doctorin London in the 19th century. He wanted to find the causeof cholera in order to defeat it. In 1854 when a cholera broke out, he began to gather information.
约翰·斯诺是19世纪伦敦著名的医生。他想找出霍乱的起因，以便战胜它。1854年霍乱爆发时，他开始收集信息。
He marked_ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the pump died.
他在一张地图上标出了所有死者的住处，他发现许多喝了水泵里的脏水的人都死了。
So he decided that the polluted water carried cholera. He suggested that the source of all water supply be examined. Finally,“King Cholera”was defeated.
因此，他认定被污染的水携带霍乱。他建议检查所有水源。最后，“霍乱王”被击败。
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第1个回答 2011-09-13
John Snow was a well-known doctorin London in the 19th century. He wanted to find the cause
of cholera in order to defeat it. In 1854 when a cholera broke out, he began to gather information. He marked_ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the pump died. So he decided that the polluted water carried cholera. He suggested that the source of all water supply be examined. Finally, “King Cholera” was defeated本回答被提问者采纳
of cholera in order to defeat it. In 1854 when a cholera broke out, he began to gather information. He marked_ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the pump died. So he decided that the polluted water carried cholera. He suggested that the source of all water supply be examined. Finally, “King Cholera” was defeated本回答被提问者采纳
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