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奥运歌曲

十二星座最爱之旅行目的地

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发表于:2018-12-16 / 阅读(289) / 评论(0)

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SSS 2011-06-22

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

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SSS 2010-03-23

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

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Scientific American(三)月

英文书摘精选 Why Humans (Not Chimps) Get Cancer为何人类而不是黑猩猩会得癌症?

You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common in humans but so rare in chimps? If our DNA is nearly identical, shouldnt we be at risk for many of t

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初学者听力文摘精选

60秒科学:黑烘焙咖啡可以让胃部更舒服

Stomach Cells Happier with Dark Roast Coffee Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to research presented

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体育词汇—滑翔伞比赛名 paraglider

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AGRICULTURE REPORT - Restrictions on Methyl Bromide

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And it's time again for StoryCorps, we've been hearing from this oral history project as it crisscrosses the country. In New York city, it's gathering interviews with families and friends who lost loved ones at the World Trade Center. StoryCorps want

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英文语法词汇

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By Cynthia Kirk Broadcast: September 6, 2003 This is Steve Ember with the VOA Special English program, In the News. Thursday will mark two years since the attacks on the United States. On September el

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VOA2003（下）-教育与新闻

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[00:30.30]lesson 33 [00:48.14]1.What is the matter with Sharon? [00:53.47]She has hurt here shoulder. [00:58.93]2.what does the doctor tell her to do? [01:06.87]The doctor tells her to use a special treatment. [01:14.24]Language points: [01:19.88]1.L

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高中英语人教版高三

Study: Loss of Ozone Slows

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

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VOA标准英语2014--Top 5 Songs for Week Ending Sept. 6

Top 5 Songs for Week Ending Sept. 6 Were counting down the five most popular songs in the Billboard Hot 100 pop singles chart, for the week ending Sept. 6, 2014. Wow! is our expert assessment of this weeks lineup, as the Top Five rouses itself from i

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On Sept. 11, He Checked Hijackers Onto Flight 77. It's Haunted Him Ever Since play pause stop mute unmute max volume 00:0003:23repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or upda

发表于:2019-01-16 / 阅读(247) / 评论(0)

2016年NPR美国国家公共电台9月

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Science and Technology Epigenetics and stress Baby blues 科技外因遗传与压力新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

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Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod

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从古至今，人类在不停地探索能够象鸟儿一样自由自在飞翔的方法，随着科技的进步和现代航空技术的发展,人类发明了各种飞行工具，滑翔伞就是其中一

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according to stock exchange practice