ABC潘玮柏教学地道日常口语 Unit15

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VOA常速英语2008年-US Government Reviews Laser Eye Surgery

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EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

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Explanation: In the United States, military service (or the time spent working in the army) is voluntary (or optional and something that one chooses to do). Under normal conditions, no one has to serve in the army if he or she doesnt want to. However

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The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network

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Whether it is mathematics or history, almost everyone has at least one subject they find to be more difficult to understand than other subjects. Some students may not be strong academically, lacking the skills they need to succeed in writing or takin

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This is All Things Considered. I'm Michelle Norris. Phone calls from Sweden woke up two American scientists this morning, John Hall and Roy Glauber. They will share the Nobel Prize for Physics with a German Researcher Theodor Haensch. All three worke

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The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

VOA慢速英语2012--The Laser: Futuristic Science Found at Your Local Store

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

VOA标准英语2009年-UN Agency Proposes Selective Industrialization

A United Nations agency is offering what it calls a conceptual breakthrough to uplift the world's poorest people. The U.N. Industrial Development Organization contends selective industrialization offers the best chance for smaller, developing countr

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VOA常速英语2007年-Scientist in Texas Runs NASA's Lunar Laser Prog

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

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College tuitions are becoming prohibitively expensive for many people, with Harvard University now costing almost $61,000 a year for tuition, room, board and fees. Given the high price tag, is it worth it to graduate from a highly selective school ve

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