单词:rarefication
单词:rarefication 相关文章
The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be foss
By Nick Wadhams Nairobi 26 July 2007 Four rare mountain gorillas have been killed after gunmen crept up on them and opened fire in the Democratic Republic of Congo's Virunga National Park. Nick Wadhams has more on the story from Nairobi. The gorillas
Rare Minerals May Be in North Korea 稀有矿物质可能在朝鲜发现 Hello and welcome back. Im Jim Tedder in Washington. Today we are going to talk about something that is worth a lot of money, and it is buried in the ground. Were not exactly go
A: What can I do for you today? B: Can I sign up for some classes today? A: Which classes? B: I would like to take a driver's course. A: Would you like to make an appointment? B: Why do I need an appointment? A: You need to sign the paperwork. B: Can
STEVE INSKEEP, HOST: We have an investigation this morning of drug companies gaming a system designed to help desperate patients. It's a story of orphan drugs. DAVID GREENE, HOST: These are life-saving drugs that pharmaceutical firms don't develop be
Rare but Deadly By Susan Brink /2005, U.S. News World Report . All rights reserved with permission. Distributed by Tribune Media Services International. Simple, cheap blood tests could save thousands
Pre-Listening Vocabulary rare: not common irrational: not reasonable classified: grouped by like qualities provoke: to excite or bother a living thing and cause a reaction initiate: to be the one to start something delicacy: a type of food that is ra
by Michael W. Flynn First, a disclaimer: Although I am an attorney, the legal information in this podcast is not intended to be a substitute for seeking personalized legal advice from an attorney licensed to practice in your jurisdiction. Further, I
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!
By Malcolm Brown Washington 09 October 2007 A collection of newly available photographs is shedding fresh light on those who carried out the Nazi holocaust. The public now has the chance to see the contents of an album, thought to have belonged to a
Nicholas Willis has won a bronze medal in the men's 1500-meter race at the Beijing Olympics. He is one of many athletes who lives in the United States but was born in another country. VOA's Jim Stevenson has more on the middle distance runner from N
By David Byrd Washington 29 May 2008 For most Americans, badminton is a backyard game played at parties and barbecues. But for Eva Lee, it is very serious - she is one of five members of the U.S. Badminton team that will be competing for gold at the
Rare Violins Play Starring Role in Concert Stradivarius instruments, especially Stradivarius violins, are known the world over for their exquisite beauty, unparalleled craftsmanship and extraordinary sound. Six of the rare instruments are owned by th
RACHEL MARTIN, HOST: Scientists have developed a better test for a very rare brain disease. And as NPR's Rae Ellen Bichell reports, this test could lead to new ways to diagnose more common diseases like Parkinson's and Alzheimer's. RAE ELLEN BICHELL,
THE MAKING OF A NATION - May 23, 2002: The War in the Pacific By David Jarmul VOICE 1: THE MAKING OF A NATION, a program in Special English by the Voice of America. (Theme) American military planners
Grammar Girl here. Today's topic is verbification. Last week police used a Taser on University of Florida student Andrew Meyer as they struggled to remove him from an auditorium where Senator John Kerry was speaking. The Web has been filled with deba
BEIJING, March 15 (Xinhua) -- China's restrictions on rare earth exports are justified and are in line with World Trade Organization rules, Shen Danyang, spokesman for the Ministry of Commerce, said Thursday. The policy aims to protect resources and
China is the world's largest producer and exporter of rare-earths. These are elements which are critical to the manufacturing of high-tech products, including smartphones, wind turbines and car batteries, among other things. However, the rare-earth i
WASHINGTON, March 12 (Xinhua) -- The United States and China on Monday held the third round of Consultations on Asia-Pacific at the U.S. Naval Academy in Annapolis, Maryland. The closed-door consultations were co-chaired by U.S. Assistant Secretary o
Two extremely rare Bengal white tiger cubs have been born at the wildlife center of the Czech Republic's Liberec Zoo, and are proving popular with visitors. These tiger cubs weigh 6 kilos 13 pounds, and were born two months ago. White tigers are the