单词：negative feedback laser
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By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca
VOA常速英语2008年（四月）
中文 英文 缩写 放大 zoom in 放大的随机发射 Amplified Spontaneous Emission ASE 放大自辐射噪声 Amplified Spontaneous Emission Noise ASEN 放电 discharge 放号 number distribution
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The stick really is better than the carrot when it comes to motivating people, a study has found. 一项研究表明，大棒比胡萝卜更能激励人。 Although modern management and schooling techniques favor praising workers or students, the ne
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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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今天我们来学习情商高的人都有的五个习惯。 1. They Know Asking For Help Is A Strength Not A Weakness 他们知道寻求帮助是长处，不是弱点 2. They Are Able To Deal With Communication Problems In A Calm Way 他们能够平静
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