单词:rapid inversion laser tube
单词:rapid inversion laser tube 相关文章
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
In English, the traditional word order of a statement is subject + verb. Never do we change the order except when asking a question. Or do we? If you listened closely, you may have noticed that my statement beginning with the word never failed to fol
In last weeks Everyday Grammar, we told you about a few kinds of inversion that are useful in academic writing and common on the TOEFL. But there are others. Today, well talk about three more. In fact, I already used one kind in my introduction. Comp
BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn
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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