单词：nuclear magenetic resonance(nmr)
单词：nuclear magenetic resonance(nmr) 相关文章
By Melinda Smith Washington 30 March 2007 Since the mid-20th century the World Health Organization reports there has been an increase in the rate of breast cancer among women in developed countries. For decades, doctors have urged their patients to d
2007年VOA标准英语（三月）
Secretary of State Hillary Clinton said Thursday the new U.S. Special Representative for North Korea Policy Stephen Bosworth will begin his first trip to the region early next week. Bosworth says he thinks North Korea is inclined to continue dialogu
VOA标准英语2009年(二月)
Linus Paulingby Linda BaxterLinus Pauling was the only person who has ever won two (unshared) Nobel Prizes: for Chemistry in 1954, and a Nobel Peace Prize in 1962. He is also known as the vitamin C man. Who was Linus Pauling and what did he do?Linus
英文杂志-Magazine
SCIENCE IN THE NEWS - Genetic Map of Chimps May Show What Makes Us Human By George Grow, Cynthia Kirk and Jerilyn Watson Broadcast: Tuesday, September 20, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN TH
科技之光
Obama vows to make new push on Iranian nuclear stalemate WASHINGTON, Nov. 14 (Xinhua) -- U.S. President Barack Obama on Wednesday vowed to make new diplomatic push aimed to solve the Iranian nuclear stalemate, noting that there is still a window of t
英语新闻
WASHINGTON, March 19 (Xinhua) -- U.S. President Barack Obama left on Tuesday night for a three-day visit to the Middle East, with focus on Iran's nuclear program, the Syrian conflict and the Israeli-Palestinian peace process. The trip to Israel, the
英语新闻
By David Gollust State Department 24 October 2007 Secretary of State Condoleezza Rice is warning Arab politics could become more radical unless the current window of opportunity for Israeli-Palestinian peacemaking is fully exploited. At a congression
2007年VOA常速英语（十月）
This is IN THE NEWS in VOA Special English. President Obama returned to the United States this week after his first visit to Europe since taking office in January. President Obama meeting with Iraqi Prime Minister Nouri al-Maliki Tuesday On his way
VOA慢速英语2009年（四）月
U.S. Secretary of State Condoleezza Rice has criticized Burma's military government for being out of step with its southeast Asian neighbors on rule of law, human rights, and democracy. VOA's Luis Ramirez reports from Singapore Rice spoke to ministe
VOA标准英语2008年（七月）
U.S. President Barack Obama is reaching out to the European public as well as its leaders, promising a new era in ties across the Atlantic. NATO allies gathered for summit talks on the French German border, Mr. Obama actively sought support for his
VOA标准英语2009年(四月)
Obama Says Diplomatic Window for Iran Nuclear Program Shrinking President Obama and British Prime Minister David Cameron say they will not allow Iran to develop nuclear weapons. Mr. Obama says Tehran has a stark choice. Tehran must understand that it
VOA标准英语2012年(三月)
Obama to Pursue Nuclear Safety, Security, Nonproliferation at Summit Keeping the world's nuclear weapons under control and out of the hands of terrorists are top goals for more than 50 leaders who will gather in the South Korean capital. They hope to
VOA标准英语2012年(三月)
Obama: Iran Must be Held Accountable President Barack Obama says Iran's government must be held accountable for what he calls dangerous and reckless behavior in what the U.S. has alleged was a plot to assassinate Saudi Arabia's ambassador to the Unit
VOA标准英语2011年(十月)
U.S. President Barack Obama has arrived in South Korea for the Nuclear Security Summit which starts Monday. Mr. Obama landed at a U.S. air base south of Seoul early Sunday local time and is expected to meet with South Korean President Lee Myung-Bak l
英语新闻
In the U.S. presidential election campaign, Democratic candidate Barack Obama focused on national security Wednesday, while his Republican counterpart, John McCain, spent time discussing education. Some new public opinion polls show Obama with a lea
VOA标准英语2008年（七月）
U.S. President Barack Obama said halting the nuclear weapons threat from Iran would reduce the need for a planned missile defense shield in Eastern Europe. But Mr. Obama denied he has told Russia he will rethink the missile shield program if Moscow
VOA标准英语2009年(三月)
WASHINGTON, March 5 (Xinhua) -- U.S. President Barack Obama said on Monday that there is still a window for a diplomatic resolution on Iran's nuclear issue, while the visiting Israeli Prime Minister Benjamin Netanyahu insisted that Israel reserved th
英语新闻
With this ability to evolve rapidly goes another, even scarier advantage. 有了这种能力，另一种更加吓人的优势会很快产生。 Bacteria share information. Any bacterium can take pieces of genetic coding from any other. 细菌能共享信
万物简史
U.S. President Barack Obama has ordered stricter sanctions on Iran's government and central bank, citing deceptive practices by Iranian banks to conceal transactions. In an executive order released Monday, the president said other factors for imposin
英语新闻
U.S. President Barack Obama says there is room for another arms control deal with Russia. After talks with Russian President Dmitry Medvedev at the Seoul nuclear summit Monday, Obama said both countries can continue to make progress in cutting stockp
英语新闻