According to the author,what may be the possible carriers of bird flu? The main sources of influenza viruses in lake water are

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问题 According to the author,what may be the possible carriers of bird flu?
The main sources of influenza viruses in lake water are ______, which may stay infections for up to 30 days.

选项

答案bird feces

解析根据题干中的关键词lake water和30 days定位到第四段，可知研究表明，湖水中的流感病毒一般是通过鸟粪传播的，这些病毒的传染性可长达30天。

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大学英语六级

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According to the author,what may be the possible carriers of bird flu? The main sources of influenza viruses in lake water are

大学英语六级

A—OnseasonJ—OffseasonB—GuidepracticeK—LocaltouristorganizationC—TravelpressL—Board

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A、6B、16C、20D、4B问题问的是男士需要付多少钱。根据女士所说的That’s16dollars可知,故选B。

July7th,2014DearProf.Lee,TheAcademicConferenceontraditionalChinesetreatmentacupunctureandmoxibustion,whic

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