随机扩增多态性去氧核醣核酸, 随机扩增多型性去氧核醣核酸 {= RAPD}

太阳科普第14期

It sits a million miles away from the Earth 它位于距地球一百万里处的 at the Lagrangian point 拉格朗日点 where the gravitational pull from the Earth and the sun is equal. 此处地球和太阳的引力相等 Fixed in space it has an u

发表于:2018-12-07 / 阅读(266) / 评论(0)

太阳科普

UNIT 2 DNA Lesson 10 What Is DNA?

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发表于:2018-12-10 / 阅读(268) / 评论(0)

河北教育初中英语（初中起点）九年级下

中英双语新闻朝鲜警告将先发制人

BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

发表于:2018-12-20 / 阅读(199) / 评论(0)

中英双语新闻

SSS 2011-07-21

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. After water, tea is the world's most popular drink. Now three New York City high school students have discovered what maybe a bruing scandal because th

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Scientific American(七)月

电影歌曲:Lose Yourself 电影《8英里》主题曲

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发表于:2019-01-03 / 阅读(177) / 评论(0)

电影歌曲

2006年VOA标准英语-US Public Support for Iraq War Drops

By Faith Lapidus Washington, DC 17 March 2006 watch US Public Opinion report Three years after U.S. and coalition troops entered Iraq and overthrew Saddam Hussein there are signs of political progress

发表于:2019-01-04 / 阅读(209) / 评论(0)

2006年VOA标准英语（三月）

沉默是金吗？

Rob: Hello Im Rob and this is 6 Minute English. With me today is Finn. Hello Finn. Finn: Hello Rob. Rob: Were talking about noise today - and looking at some of the words and phrases associated with noise and its opposite: peace and quiet. But, as al

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六分钟英语

SSS 2010-07-15

Clothing is so yesterday. I mean, really, what can it do? It cant pick up sound, or beep at us if somethings wrong. Or can it? M.I.T. researchers say theyve developed a fiber that would allow clothing to eventually do those things. Their study is in

发表于:2019-01-08 / 阅读(202) / 评论(0)

Scientific American(七)月

NPR 2011-02-09

The numbers calling for President Hosni Mubarak to resign in Egypt keep growing in central Cairo. More than a quarter million people now estimated to be overflowing from Tahrir Square. Thousands more are rallying outside Cairo. NPR's Corey Flintoff m

发表于:2019-01-08 / 阅读(442) / 评论(0)

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电信英语

双语演讲稿：成功之我见

Once upon a time， there was a king who had a daughter as beautiful as a blooming rose. To all the suitors who came to the king's palace to ask for the hand of the princess, the old king assigned three tasks to be accomplished, each next to impossib

发表于:2019-01-08 / 阅读(194) / 评论(0)

英语演讲

Prospect of Istanbul nuclear talks less promising

TEHRAN, Jan. 19 (Xinhua) -- After eight years of struggle over Iran's nuclear program, the prospect of the upcoming nuclear meeting between Iran and the G5+1 countries in Istanbul( 伊斯坦布尔) on Friday and Saturday seems to be less promising. B

发表于:2019-01-20 / 阅读(182) / 评论(0)

英语新闻

工作很不爽？该这样向老板吐槽

From time to time, we all deal with disappointment at work. It just happens. A hiring manager can choose the wrong candidate to fill avacancy; a project sponsor can suddenly pull support; and a colleague can stab you in the back. 在工作中，我们时

发表于:2019-02-01 / 阅读(175) / 评论(0)

阅读空间

护肤品不好用没准和你的DNA有关

LONDON Whats being billed as the future of skin care starts suspiciously like a visit to the dentist: with a mouthwash gargle. Thats to eliminate debris that may interfere with a good saliva sample, from which DNA will be extracted and serums tailore

发表于:2019-02-06 / 阅读(217) / 评论(0)

阅读空间

过敏症可能与洗碗方式有关

A new study suggests that parents who wash their dishes by hand, rather than in a dishwashing machine, may unwittingly lower the likelihood that their children will develop allergies. 一项新研究表明，父母用手洗碗而不是用洗碗机可能

发表于:2019-02-06 / 阅读(184) / 评论(0)

阅读空间

新奇：时速160公里的自行车

Now Minneapolis-based inventor Rich Kronfield has created an electric-assist 'Raht Racer' velomobile that he claims can travel at up to 100mph (160km/h). 现在美国明尼阿波利斯的发明家里奇?科伦菲尔德研制了电动拉特赛车（Ra

发表于:2019-02-13 / 阅读(239) / 评论(0)

阅读空间

经济学人204:食用油产业怎么了?

Vegetable oil 植物油 Whats cooking? 发生了什么事? Edible oils are filling fuel tanks as well as bellies 食用油填饱了肚子还要灌满油箱 Sep 17th 2011 | from the print edition OIL markets are full of uncertainty. Asian demand is bo

发表于:2019-02-17 / 阅读(197) / 评论(0)

经济学人综合

经济学人203:食用油产业怎么了?

发表于:2019-02-17 / 阅读(186) / 评论(0)

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PBS高端访谈:为什么墨西哥城易受地震的影响?

Yesterday's earthquake in Mexico was the second in less than two weeks and brought back memories of the terrible tremor that hit 30 years to the day yesterday. So many are asking about why the country and region seem more prone to these earthquakes.

发表于:2019-02-17 / 阅读(160) / 评论(0)

PBS访谈社会系列

经济学人250:Facebook对你没好处

Facebook is bad for you Facebook对你没好处 Get a life! 回到现实中过日子吧！ Using the social network seems to make people more miserable 使用Facebook这种社交网站看起来让人们更加痛苦 Aug 17th 2013 |From the print editi

发表于:2019-02-18 / 阅读(169) / 评论(0)

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