单词：phenylhydrazine levulinic
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This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
Scientific American(三)月
This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ
Scientific American(四)月
Indonesia Clinic Discounts Healthcare for Conservation-Minded Communities Getting access to adequate health care can be difficult in many parts of rural Indonesia, a necessity that often involves long journeys to overcrowded clinics. And once there,
VOA标准英语2011年(十月)
DEVELOPMENT REPORT – May 20, 2002: AIDS Clinic Competition By Jill Moss This is the VOA Special English Development Report. An American organization called Architecture for Humanity has announced an
农业与发展
Wounded Syrians Treated at Secret Clinic in Lebanon Amran, 6, is one of the youngest patients in this hospital. He has difficulty walking. When he shows his leg, its easy to see why. A chunk is missing from his shin. The hole is surrounded by red sca
VOA标准英语2012年(二月)
SUVA, March 14 (Xinhua) -- Some 300 diabetes patients（有耐心的 ） undergo amputations every year in Fiji and the trend is worrying the authorities. This is according to research carried out by the country's Physiotherapy Associations which sho
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