单词：clapper rail
单词：clapper rail 相关文章
U.S. President Barack Obama has chosen the Defense Department's head of intelligence to oversee the nation's 16 intelligence agencies. Retired Air Force General James Clapper is the president's choice to be the new Director of National Intelligence. 美
VOA双语新闻 2010年6月
If you have two hands, you cant help but applaud the original Clapper. First sold in 1985, it worked with a lamp or any other electric device. You plugged the Clapper into an outlet. Then you plugged your lamp into the Clapper. By clapping twice, you
365个英语简短小故事
AS IT IS 2016-02-13 America Faces Many Security Challenges 美国面临许多安全挑战 Nuclear weapons, terrorism and computer spying are problems for national security, say American intelligence officials. The officials say challenges and crises
2016年VOA慢速英语(二)月
President Barack Obama announces James Clapper as his choice to oversee the nation's 16 spy agencies as director of national intelligence, 05 Jun 2010 U.S. President Barack Obama has chosen the Defense Department's head of intelligence to oversee the
VOA标准英语2010年(六)月
Beijing, August 14 (Xinhuanet) -- The National Development and Reform Commission (NDRC)（国家发改委） on Friday approved a batch of inter-city rail transit networks, spanning more than 2,000 kilometers, to accelerate（加速） regional integ
英语新闻
During the Cold War, the U.S. military built an elaborate system to control the thousands of nuclear weapons in this country. There are many checks and balances, no officers who work with intercontinental ballistic missiles, nuclear armed aircraft, o
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