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双语:家中的灰尘里藏有九千种细菌

发表于 2015-9-1 12:32:50 | 查看全部 |阅读模式

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来源:BBC英语教学  
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吸尘器  最新的研究报告说,一户普通美国人家的家中会隐藏着约九千种不同类型的微生物,这些微生物是怎么进来的呢?以下是 Rebecca Morelle 的报道。
  A genetic analysis revealed that the average household had more than 2,000 species of fungi. The types of fungus found though depended on the home's location, suggesting these minute organisms are drifting in from outside.
  The researchers also discovered an average 7,000 different types of bacteria per household. But the species varied according to whether men or women were the main residents or whether they lived with cats or dogs.
  Although the study was carried out in the US, the scientists say the findings are also relevant around the world.
  Glossary 词汇表
  genetic analysis基因分析
  household家庭
  fungi(复数)真菌
  organisms生物
  bacteria(复数)细菌
  species物种,种类
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