单词:p-menthol hydroperoxide
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Boadcast: Jan 21, 2003 By George Grow This is Sarah Long. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program about recent developments in science. Today, we tel
It is estimated that over 400, 000 Americans every year die of smoking related diseases. But kicking the habit is not so easy. A new study finds that smokers who smoke menthol cigarettes could have mo
This is Scientific Americans 60 Second Science, I am Cynthia Graber, this will just take a minute. Compounds found in the herb thyme have antibiotic properties. Now scientists have demonstrated that thyme might have a future role in fighting acne. A
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67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59
From NPR News in Washington, I'm Lakshmi Singh. Boy meets world. Today, the world had its first glimpse of Britain's royal new born, the third in line to the throne. He was brought up by his parents William and Kate, Duke and Duchess of Cambridge. An