单词：sr-isotopes
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单词：sr-isotopes 相关文章
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牙齿和爪子.Tooth.And.Claw
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Climate change is the great environmental challenge facing the world today, but maybe we should start calling it Climates Change. Because scientists who've
Scientific American(五)月
Some people of Italian ancestry, like me, might have a surprise in the family treea man of east Asian descent, who was living and working 2,000 years ago in the boondocks near the heel of the Italian boot. The discovery is the first good evidence of
Scientific American(二)月
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola
Scientific American(七)月
AS IT IS 2016-04-26 Chernobyl, Risky Still, Thirty Years Later 切尔诺贝利三十年后风险仍在 Tuesday marks the 30th anniversary of the Chernobyl disaster, the worlds worst nuclear accident. The effects of the disaster are still felt today.
2016年VOA慢速英语(四)月
By Jim Teeple Jerusalem 29 August 2006 UN Secretary-General Kofi Annan, third right, leaves southern headquarters of UNIFIL, in Naqura, August 29, 2006 U.N. Secretary-General Kofi Annan is in Israel after meeting with Lebanese officials and visiting
2006年VOA标准英语（八月）
By Sonja Pace London 27 June 2007 After a decade in power, British Prime Minister Tony Blair has stepped down, handing in his resignation to Queen Elizabeth, who called in Gordon Brown to confirm him as Britain's next prime minister. VOA's Sonja Pa
2007年VOA标准英语（六月）
By Challiss McDonough Sharm El-Sheikh 21 May 2006 Palestinian President Mahmoud Abbas, left, meets with Israeli Foreign Minister Tzipi Livni Palestinian President Mahmoud Abbas has met with senior Isr
2006年VOA标准英语（五月）
KELLY MCEVERS, HOST: Donald Trump Jr. says he agreed to that meeting last June at the request of an acquaintance from the Miss Universe pageant. The Washington Post says that person was Rob Goldstone. He's a British-born music promoter. Goldstone say
2017年NPR美国国家公共电台7月
The first day of the experiment, we got out to our plot 实验的第一天，我们来到了实验地点， and a grizzly bear and her cub chased us off. 突然一头灰熊和她的熊宝宝出现，把我们赶跑了。 And I had no bear spray. But
TED演讲科学篇
Science and technology 科学技术 Going underground 向地底进军 A project to reveal more about all the carbon on Earth 旨在向人们揭示更多地球碳信息的项目 The Deep Carbon Observatory 深碳观测站 A world still full of secrets
经济学人科技系列
Technology Going underground 科技 去地球深处 A project to reveal more about all the carbon on Earth 一个将会揭示更多关于地球上所有碳的秘密的项目 THE carbon cycle is the stuff of school books. 碳的循环在学校教科书中
经济学人科技系列
Hillary Clinton has made her first trip to the West Bank as U.S. Secretary of State, criticizing Israel for its plans to demolish a large number of Arab homes in East Jerusalem. She has also reaffirmed U.S. support for Palestinian statehood. But man
VOA标准英语2009年(三月)
By Anjana Pasricha New Delhi 28 November 2007 Two separate bomb attacks inSri Lanka'scapital Colombo blamed on Tamil Tiger rebels have killed at least 19 people, including a female suicide bomber. The attacks came a day after the head of the country
VOA常速英语2007年（十一月）
The comment follows a disappointing monthly unemployment report that showed continuing job losses in the United States. Michael Bowman | Washington 10 January 2010 Photo: AP Nick Rodriguez looks at job listings for tow truck drivers in the New York S
VOA标准英语2010年(一月)
Palestinian Authority President Mahmoud Abbas told the European Parliament the Israeli attacks on Gaza were war crimes and that Israeli officials should be held accountable. Mr. Abbas spoke during a tour of Europe to drum up support for peace talks
VOA标准英语2009年(二月)
EU Commissioner Oliver Rehn is in Athens to discuss Greek proposals to straighten out its government finances. The European Union has urged Greece to implement greater austerity measures immediately to tackle a debt crisis that has shaken the entire
VOA标准英语2010年(三月)
Conradin was ten years old, and the doctor had pronounced his professional opinion that the boy would not live another five years. The doctor was silky and effete, and counted for little, but his opinion was endorsed by Mrs. de Ropp, who counted for
英文短篇小说
A group of scientists from the Ohio State University are trekking to the top of the Quelccaya Ice in the Peruvian Andes to try to measure the effects of climate change on the world's glaciers. The average distance above sea level on the glacier is ar
英语新闻
WASHINGTON, Aug. 17 (Xinhua) -- Latest research shows that the Moon could be younger than previous estimates. The findings were published online Wednesday in the Nature journal. The prevailing theory of the Moon's origin is that it was created by a g
英语新闻