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This is Scientific Americans 60 second Science, I am Gretchen Kuda Kroen, this will just take a minute. When normal populations of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as
Scientific American(一)月
When normal population of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as Clostridium Difficile, C Dif. The mean symptom is nearly constant and debilitating diarrhea. One of the
Scientific American(一)月
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动物街64号 Zoo Lane 第四季
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 will tell about one explanation for many trees dying in the western United States. We will tell about a project to make e
VOA慢速英语2009年（二）月
This is Scientific Americans 60 second Science, I am GretchenKuda Kroen, this will just take a minute. When normal populations of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as
Scientific American(一)月
Goldman Sachs is a global investment banking and securities firm. It also deals in investment management and other financial services. Most of its clients are institutions, governments, pension funds and very wealthy people. It was founded in 1869 by
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If you look at the HS2 plan at the moment, the 50 billion link is designed to go between London and Birmingham，it was a first stage before creating a Y shape network with lines up to Manchester and Leeds. 2032 to 33 that should be ready, but you ca
英伦广角
By Peta Thornycroft Harare 17 February 2006 Martin Mhizha fetches water from an unprotected water source in Epworth, Zimbabwe In Zimbabwe's capital Harare, for the first time in most people's memory p
2006年VOA标准英语（二月）
This is Scientific American's 60-second Science, I'm Steve Mirsky. Got a minute? Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pound
Scientific American(六)月
VOICE ONE: Im Steve Ember. VOICE TWO: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. This week, we tell about a growing threat to airplanes around the world. And we hear about objects in space that are threatening satellites and the
VOA慢速英语2009年（四）月
By Suzanne Presto Washington, D.C. 19 September 2006 watch Bus Tour report Five young Americans spent two months traveling across the United States recently on a two-month bus journey. But this was not a romantic cross-country trip of self-discovery
2006年VOA标准英语（九月）
By Barry Unger Washington, D.C. 28 June 2007 The 41st Smithsonian Folklife Festival is now underway in Washington, D.C. The annual event brings together cultures from around the world to both educate and entertain visitors. VOA's Barry Unger visited
2007年VOA标准英语（六月）
Southeastern Australia has endured some of the hottest temperatures in a century, which have fanned fires that have destroyed homes and strained emergency power and transport services. At least 20 people may have died from heat stroke as temperature
VOA标准英语2009年(二月)
By Miguel Angel Rivera Istanbul, Turkey 04 December 2006 watch Turkey's Religious Tolerance One of the themes of Pope Benedict's visit to Turkey last week was to strengthen the bonds between the Roman Catholic Church and Eastern Orthodox Christians.
2006年VOA标准英语（十二月）
Fecal Transplants Used to Cure Intestinal Disorders 粪菌移植可治肠道疾病 粪菌移植是指将健康人粪便中的功能菌群，移植到患者胃肠道内，重建具有正常功能的肠道菌群，实现肠道及肠道外疾病的诊疗。
VOA常速英语2013年(八月)
By David McAlary Washington 18 January 2007 International public health officials say the number of deaths from measles has dropped sharply in developing nations since 1999, with the biggest decline in Africa. VOA's David McAlary has more on the sto
2007年VOA标准英语（一月）