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科学美国人60秒 SSS 2013-09-09

时间：2013-11-25 05:22:11

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 We already know that human population can get taller overtime,but a new study show just how extreme this growth ber can be.Academic storiology and ...the university as Alexandar Australian National University exame height changes in a relatively1 short time period and small geographic2 region.His data sample consists that the dovemails around 21 years old who were born in 19 European countries between 1856 and 1980.The study is published in Oxford3 Academic Papers.Over the century and a third,every child increased by about 11 centimetres,a good half a head.But why?According to Harton,improvements in sanitation4 and housing reduced inferior...and child diseases.The result in healthier and taller children.Other facts include increased wealth,education and social and health programe.Smaller family which insured that each child has more to eat may have played a role as well.In general,a taller population is a marker for better health.So congratulation for you,keep living large


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1 relatively bkqzS3     
adv.比较...地，相对地
参考例句：
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
2 geographic tgsxb     
adj.地理学的，地理的
参考例句：
  • The city's success owes much to its geographic position. 这座城市的成功很大程度上归功于它的地理位置。 来自《简明英汉词典》
  • Environmental problems pay no heed to these geographic lines. 环境问题并不理会这些地理界限。 来自英汉非文学 - 环境法 - 环境法
3 Oxford Wmmz0a     
n.牛津（英国城市）
参考例句：
  • At present he has become a Professor of Chemistry at Oxford.他现在已是牛津大学的化学教授了。
  • This is where the road to Oxford joins the road to London.这是去牛津的路与去伦敦的路的汇合处。
4 sanitation GYgxE     
n.公共卫生，环境卫生，卫生设备
参考例句：
  • The location is exceptionally poor,viewed from the sanitation point.从卫生角度来看，这个地段非常糟糕。
  • Many illnesses are the result,f inadequate sanitation.许多疾病都来源于不健全的卫生设施。

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