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HEALTH REPORT - May 22, 2002: Guggulsterone Cholesterol By Nancy Steinbach 21 May 2002, 20:20 UTC This is the VOA Special English Health Report. Researchers say that a natural substance found in some
健康与环境
Last time we talked about how astronauts eat and drink under weightless conditions in space. Today we'll cover the next question kids love to ask-how do astronauts go to the bathroom in space? It may sound silly, but it's really a good question, beca
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Listen this way听力教程第二册-11
Listen this way听力教程
VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. This week, we tell about vitamins. (MUSIC) VOICE ONE: Vitamins Many jobs must be done with two people. One person takes the lead. The
VOA慢速英语2009年（四）月
SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins By Nancy Steinbach Broadcast: Tuesday, March 29, 2005 (MUSIC) VOICE ONE: I'm Bob Doughty with Phoebe Zimmermann, and this is the VOA Special
科技之光
Sure, you think the world is full of solid objects. You think the radio youre listening to is solid. You think the floor youre standing on or the chair youre sitting in is solid. Heck, you probably think that you yourself are a solid object. Wrong. O
英语时差8，16