课程咨询
美国本科留学资料领取

扫码添加助教

免费领取

备考资料大礼包

扫码关注公众号

新SAT语法练习题及答案(30)

2017-09-28 10:46:00来源:网络

  本文新SAT语法题目来自可汗学院,希望对大家SAT备考有所帮助。更多可汗学院新SAT题目解析及答案PDF资料请【点击下载】,点击查看>>更多可汗学院SAT语法题目及答案!

  From discovering the causes of polio and smallpox to controlling epidemics all around the world, epidemiologists have been behind many of our current advancements in public health. While the field of epidemiology now encompasses a wide range of skills and methods, its origin is commonly traced back to a single story; the tale of John Snow and the Broad Street pump. Snow was born in England in 1813 —a time when the prevailing notion behind disease transmission was the “miasma theory.” According to this theory, diseases were spread through particles from decomposed matter that would then become part of the air. Snow, who had survived a number of cholera epidemics in his childhood before pursuing a career in medicine, was cynical about this elegant but incorrect theory. However, it was not until the cholera epidemic of 1854 that he was able to acquire insurmountable evidence showing that cholera was caused by something other than “bad air.”

  如需查看答案请点击下载可汗学院新SAT语法题集PDF完整版

  更多新SAT语法题目内容请点击下一页

SAT水平能力测试【0元免费测试】

美本留学资料大礼包

微信扫描二维码 回复【美本资料】

机考SATCB官方样题|可汗练习题|AP全科大纲/备考资料包

更多资料
更多>>
更多内容

添加美本助教号

自动领取备考资料大礼包

1. 打开手机微信【扫一扫】,识别上方二维码;
2.添加【美本助教】,自动领取留学备考资料大礼包。

可汗学院新SAT题目完整版

微信扫描下方二维码 即可获取

更多>>
更多公开课>>

2023美本留学资料免费领取

微信添加美本助教

新东方美本助教
更多>>
更多资料

添加新东方在线美本助教号

自动领取备考资料大礼包

1. 打开手机微信【扫一扫】,识别上方二维码;
2.添加【Ella助教】,自动领取留学备考资料大礼包。