单词：isotopic exchange process
单词：isotopic exchange process 相关文章
When you go abroad, what's the thing you need most? Money, of course! You'll need to go to the bank to buy some traveler's checks. Then when you arrive at your destination, you'll have to go to a bank
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest
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A:Hello,how can I help? 您好，我如何为您效劳？ B:Hello there. I need to buy some foreign currency for a business trip. How much can I exchange? 你好。我需要买些外币在出差时用。我能够兑换多少钱？ A:That does depend
银行英语情景口语
By Mario Ritter Broadcast: November 14, 2003 This is Steve Ember with the VOA Special English Economics Report. Last week we told about the New York Stock Exchange and the 1)resignation of its chairma
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By Mario Ritter Broadcast: November 7, 2003 This is Bob Doughty with the VOA Special English Economics Report. The largest 1)stock market in the world is the New York Stock Exchange. It is also the ol
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By Jim Malone Washington 25 October 2007 The lengthy and complicated process of choosing the next president of the United States begins in early January when voters attend party caucuses and cast ballots in primaries to select the presidential nomine
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By Jim Teeple Jerusalem 17 December 2007 After seven years, Israeli and Palestinian negotiators are talking once again. That development came at the end of 2007, a year of turmoil and transition which saw the Palestinian territories split, politicall
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar
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What does an 800-pound gorilla eat? If you said: anything it wants, youre not thinking like a scientist. A scientist would say, Let me analyze the isotopic composition of its excreta and Ill get back to you. Because a new study shows that the ratio o
Scientific American(十二)月
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By Cindy Saine Washington 21 September 2007 The U.S. tech-heavy stock exchange, Nasdaq, has struck a deal to sell a 20 percent stake to the United Arab Emirates-owned Borse Dubai, in exchange for control of the Nordic bourse operator OMX. But the dea
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ECONOMICS REPORT - Will Former Exchange Chief Have to Return Pay? By Mario Ritter Broadcast: Friday, June 04, 2004 This is Bob Doughty with the VOA Special English Economics Report. Not many people wo
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BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear
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A man enters a barbershop for a shave. While the barber is foaming（涂上泡沫） him up, he mentions the problems he has getting a close shave around the cheeks. I have just the thing, says the barber, taking a small wooden ball from a nearby dra
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By Challiss McDonough Cairo 11 March 2008 Many Arabs say recent violence in Gaza and Israel is placing the Middle East peace process in jeopardy again. VOA Middle East Correspondent Challiss McDonough reports from Cairo the process is under review ah
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BEIJING, Jan. 12 (Xinhua) -- China will push forward the development of a national off-exchange or over-the-counter (OTC) market to meet growing financing demand of enterprises, a senior securities official said on Saturday. Yao Gang, vice chairman o
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China, Russia vow to advance cultural exchange
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Compston's machine allowed such rocks to be dated with unparalleled precision. 康普斯森的仪器能以无与伦比的精确度测定这些岩石的年代。 The prototype SHRIMP was built and machined in the Earth Science department's own worksho
万物简史
BEIJING, Dec. 27 (Xinhua) -- The People's Bank of China (PBOC), China's central bank, announced Tuesday that it is banning local regions, institutions or individuals from setting up gold exchanges apart from the existing Shanghai Gold Exchange and Sh
英语新闻