单词:4-phenyl-3-buten-2-one
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By Sonja Pace London 30 April 2007 Five British men have been sentenced to life in prison for their involvement in an al-Qaida inspired plot to carry out bomb attacks across Britain. VOA's Sonja Pace reports from London on the outcome of the trial th
CRA-JAH! CRA-AWK-NEF,! Teddy croaked. Teddy was speaking Raven now, but Jack understood him perfectly. Teddyhad said, So+qV, Jackand Annie! Annie stepped forward. Sh, fluttered to the windowledge and perched with Teddy. GRA-QUORK! shecroaked. That's
Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal
its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th
This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ
Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the
The simplest way to say it is this: I believe in my mother. My belief began when I was just a kid. I dreamed of becoming a doctor. My mother was a domestic. Through her work, she observed that successful people spent a lot more time reading than they
Pienso En Ti 群星 Compilation [ | 大碟 | MV ] One 第 2 首 环球2003年5月 Vocal:Enrique Iglesias Cuando siento que mi vida se desliza y la soledad me come dia a dia, Pienso en ti... Pienso en ti... Cuando el frio me llena el alma me congela y
(MUSIC) That July was the hottest month ever in West Virginia. Many workers became tired and weak in the heat. John Henry was concerned his friends might lose their jobs. So, he picked up their hammers and began doing their work. One week, he did his
(MUSIC) Today we tell a traditional American story called a tall tale. A tall tale is a story about a person who is larger than life. The descriptions in the story are exaggerated much greater than in real life. Long ago, the people who settled in un
AMERICAN MOSAIC - In Domestic Violence Cases, Children Are Often the Forgotten Victims MARIO RITTER: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) Im Mario Ritter. Today we listen to new music from Feist. We also read some of your recent
By Alisha Ryu Nairobi 14 March 2007 Government officials in Kenya are vehemently denying media reports that a man, believed to be a close associate of one of the three most wanted al-Qaida operatives in east Africa, has been arrested in the coastal
独立小调:烦恼总是让我烦恼Entroubled Kings Castles You bring me trouble, oh so much trouble, now we're in trouble make me lose my page. Could there be a harder way? A loving couple I've blown your cover, drawn to the camera like a moth t
By Deborah Tate Capitol Hill 17 May 2006 The U.S. Senate Wednesday continued work on an immigration reform bill, voting to bar illegal immigrants with criminal records from becoming U.S. citizens and
By Peter Fedynsky Washington, DC 17 April 2006 watch Resignation report Donald Rumsfeld (file photo) President Bush has rejected calls from a group of retired generals for the resignation of Defense S
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
Katia: So, Enam, let's talk about environmental problems of our countries. In Bangladesh, what is an environmental problem? Enam: Actually, we have a lot of environmental problems in Bangladesh but mainly I'd say the soil contamination is quite bad,
Kenyan Farmers Going Green As scientists and political leaders around the world grapple with the issue of climate change, many farmers are looking at technologies that rely on renewable energy for their operations. Farmers in Kenya are now using two