单词：livestock biophysics
单词：livestock biophysics 相关文章
Lucky Livestock Go to Maryland Animal Sanctuary Welcome to American Mosaic from VOA Learning English. Im Kelly Jean Kelly. On the show today, we play music on a new album from Sean Kingston. We also answer a question about casinos in the United State
2013年VOA慢速英语(十)月
After nine years at Bell labs, I decided to leave that warm, cozyivory towerfor what I considered to be the real world, a university. Bell Labs, to quote what was said about Mary Poppins, was practically perfect in every way, but I wanted to leave be
TED演讲教育篇
OK? Now, we're dealing with people who only want results, and this is the commercial world. 今天，我们在和只在乎结果的人们打交道，这是一个商业的世界。 And they tell us that even if we do it by astrology, they're happy, OK
TED演讲教育篇
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Seventy percent of all antibiotics in this country go to livestock like pigs and chickens. And concern is growing about drug-resistant bacteria that sp
Scientific American(三)月
By Tom Rivers London 23 August 2007 Vigilance and early containment of foot and mouth disease in Britain have paid off as European vets agree to lift the export ban on British meat and livestock. For VOA, Tom Rivers in London has details. A ruptured
2007年VOA标准英语（八月）
Animals in many large livestock-raising operations around the world get a small but steady dose of certain antibiotics in their feed. U.S. health officials say there is unequivocal evidence of a link between overuse of antibiotics in healthy livestoc
VOA标准英语2010年(七)月