单词：photon channel
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Lesson 64 The Channel Tunnel海峡隧道 First listen and then answer the question. 听录音，然后回答以下问题。 Why was the first tunnel not completed? In 1858, a French engineer, Aime Tho
新概念英语第二册
Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of
2015年Scientific American(一)月
A nightlight may keep those monsters under the bed. But it may also open the door to the blues. Because a new study reveals that animals exposed to light all night long show signs of clinical depression. If you have access to electricity, you no doub
Scientific American(十)月
CCTV5 to become Olympic channel since Jan 1, 2008 China's CCTV5, the country's main sport channel, will become a 24-hour Olympic channel starting Jan.1st next year. It will become the major media window on preparations for the 2008 Beijing Olympics
英语新闻视频
Maybe Mattel (The world's largest toy company) is also up, because it's been a very good year. And this is the time in a year when people buy a lot of toys. It's also been quite a year in business over the last 12 months, the biggest names involved i
商业报道2007年
Time for a corporate crime update, and we begin this morning with Hewlett-Packard. Welcome back, everybody. 55 minutes past the hour. Let's get right to Ali Velshi, he is Minding Your Business this morning. Sadly, there's always lots to talk about on
商业报道2007年
DAVID GREENE, HOST: I mean, let's listen to this. (SOUNDBITE OF TV SHOW, STAR TREK: THE ORIGINAL SERIES) JAMES DOOHAN: (As Captain Montgomery Scott) Ready to transport. WILLIAM SHATNER: (As Captain James T. Kirk) Energize. D. GREENE: Yes, the familia
2017年NPR美国国家公共电台7月
But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a
TED演讲教育篇
Alfred Broaddus is the former president of the Richmond Federal Reserve, he joins us now. Mr. Broaddus, it's always a pleasure to have you with us on Saturday, we appreciate it. Nice to be here. So, you know Steve Tang in chief was saying: Look, loo
商业报道2007年
World Bank President Paul Wolfowitz spent his two years in the job trying to build his credentials as the banker to the developing world. But one of his first decisions back in 2005 put his job on the line. On Friday, the World Bank released documen
商业报道2007年
He was never implicated in the Siemens bribery allegations, but Klaus Kleinfeld will have to pay the price. After a meeting of the supervisory board, Klaus Kleinfeld announced he would not be available for another term as CEO of the company. An unce
商业报道2007年
The Dow Jones is the oldest running stock exchange in the United States looming large from Wall Street to your 401(K) . Founded back in 1896, the Dow was set up to track America's big industrial companies. But these days, GE is the only component in
商业报道2007年
The closing bell rang moments ago and it couldn't have come too soon for many investors after this crazy week on Wall Street. It was another roller-coaster session for the market. Stocks actually edged into the plus column briefly, but by the end it
商业报道2007年
A divided Supreme Court ruled yesterday that carbon dioxide and other greenhouse gases are air pollutants under the Clean Air Act. And the court said the Bush Administration broke the law in its refusal to limit emissions of those gases. And accordi
商业报道2007年
Oliver, there was a strong market reaction when Microsoft announced it was buying aQuantive, what's behind this deal? Well, I think Microsoft knows it needs to get into the advertising business. For years, it's basically made money one way, which is
商业报道2007年
Well, some people might want to read things on finance for Memorial Day weekend. But gas prices has bring you a trip a quarter, treble A actually calculate how much your trip cost you. If you want to find out, you can load onto fuelcostcalculator.com
商业报道2007年
Well, the Dow struggled to beat yesterday's record high. Stephanie Elam is in New York with a look at the final numbers and other business news headlines on this Thursday. Hi, Stephie. Hi, Richard. It's struggled but, ah, did really manage to pull i
商业报道2007年
Script： Now we move to northern Germany where the so-called G8 is underway among the leaders of the world's most powerful nations, and that would include President Bush. The truth is ,however, it's an uneasy gathering and not just beneath the surfa
商业报道2007年
Yahoo launching a celebrity gossip site, hoping to cash in on the summer of Paris Hilton. This as shareholders seem to have no problem with CEO Terry Semel cashing in on Yahoos flat stock performance. CNBC, Silicon Valley of your trip, Jim Goldman is
商业报道2007年
A joint play to start the Paris Air Show, with the biggest them all , the airbus A380 the symbols in France. The A380 has had a host technical problems , but Airbus says the production delays that followed are behind now. Weve learned a lot of lesson
商业报道2007年