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Participating in a Clinical Trial Lucinda: You look tired. Are you all right? Elan: Im fine. Its this clinical trial Im enrolled in. Im suffering from some side effects. Lucinda: Are they serious? Elan: No, theyre not too bad. I was told to expect so
2013年ESL之就医和人际交往
The Best Practical Joke I Ever Saw I've never been much for playing practical jokes on people, nor have Ibeen on the receiving end very often. The biggest practical joke Iever played on anyone was on April Fools Day ... I had our secretaryleave a pho
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As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la
2014年VOA慢速英语(八)月
From time to time, researchers stop clinical trials because the results seem almost too good to be true. A new international study shows that is probably because those results are not true. When researchers end a clinical trial early because the resu
VOA标准英语2010年(三月)
By Tom Rivers London 07 October 2009 Ada Yonath (file photo) Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA code is translated into life itself. Americans Venkatraman Ramakrishnan and Thom
VOA标准英语2009年(十月)
The History of Chemistry Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slowly and laboriously. But chemical knowdedge is as old as history, being almost entirely concerned
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