单词：back-to-back capacitor bank breaking current
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This is Science American-60 minute Science, I'm Sofie Bushway. Got a minute? Roosters greet the rising sun with Ohh, but they also crowed at other times, so are they responding to the light or do they simply know that it's morning. New research sets
Scientific American(三)月
The reef was left high and dry, exposed to air and harsh sun. A trillion tiny creatures died in their own homes. For the coral, it was an apocalypse. When the ice age ended, the sea came back and submerged the dead reef. But what brought it back to l
自然百科2011年
Part One Opening a Bank Account第一部分 银行开户 Clerk: Good morning, Mrs Green. What can I do for you? 格林太太，早晨好。能为您效劳吗？ Mrs Green: I want to open a checking-savings account in the bank. Will 50 US dollars' dep
实用英语
Vice Finance Minister Zhu Guangyao is representing China at the meetings, which are happening this weekend in Washington and involve the IMF and the World Bank. While making a speech at Washington DC- based think tank the Atlantic Council, he urged t
英语新闻
The head of the U.S. central bank says the outlook for America's economic performance has worsened, and that the Federal Reserve may have to reevaluate current interest rates. VOA's Michael Bowman reports from Washington, Fed Chairman Ben Bernanke s
VOA标准英语2008年（十月）
By VOA News 04 March 2008 The head of the U.S. central bank says the current housing crisis in the United States demands a vigorous response. In a speech to a banking group in Florida, Federal Reserve Chairman Ben Bernanke said foreclosures and late
VOA标准英语2008年（三月）