单词：agnotobiotic
单词：agnotobiotic 相关文章
This is the VOA Special English Health Report. Shy people often avoid situations that force close contact with other people. They worry that something they say or do will make others laugh at them. But some people worry much more than others about be
VOA慢速英语2009年（十二）月
I can't believe we took a trip to Morgan's library,said Annie. Jack smiled and nodded. It was incredible, wasn't it? said Annie. Yeah,said Jack. A strong breeze gusted through the tree housewindow. It blew open their research book about SanFrancisco.
汪培珽儿童英文分级书单《神奇树屋》
By Carol Pearson Washington 28 February 2007 watch Antibiotic Resistance report Penicillin and Erythromycin are examples of antibiotics that used to be one-time miracle cures. These drugs and other antibiotics are now less effective because bacteria
2007年VOA标准英语（二月）
STEVE INSKEEP, HOST: This year Americans will spend more than $2 billion on probiotics, supplements aimed at boosting what are called good bacteria inside us. One part of the market that's growing rapidly is probiotics for babies and kids. Here's NPR
2018年NPR美国国家公共电台5月
Motorola is a manufacturer of wireless mobile phones, two-way radios, microprocessors and wireless network infrastructure equipment. Its website says: Motorola is a global communications leader powered by a passion to invent and an unceasing commitme
各大品牌英文介绍
Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience
60秒科学
EDUCATION REPORT -August 8, 2002: Magnet Schools By Jerilyn Watson This is the VOA Special English Education Report. Many American students attend public schools called magnet schools. They are called
教育与新闻
By Alan Silverman Hollywood 16 April 2006 A new film exposes an icon of 1950's pop culture in the United States: a pin-up model whose provocative photographs, though tame by today's standards, created
2006年VOA标准英语（四月）
Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience
Scientific American(五)月
This is IN THE NEWS in VOA Special English. Judge Sonia Sotomayor appears headed for confirmation to the United States Supreme Court. The Senate Judiciary Committee held hearings this week to consider her nomination by President Obama. Judge Sotomay
VOA慢速英语2009年（七）月
Supreme Court nominee Judge Sonia Sotomayor is spending a third day answering questions before the Senate Judiciary Committee. Lawmakers continued to ask Sotomayor about her past rulings as a federal judge, and statements she has made, as they consi
VOA标准英语2009年(七月)
Judge Sonia Sotomayor, President Barack Obama's nominee to serve on the Supreme Court of the United States, has pledged impartiality and fidelity to the law if she is confirmed as the first Hispanic Supreme Court justice and only the third woman to
VOA标准英语2009年(七月)
ROBERT SIEGEL, HOST: Now some good news, especially for babies around the world. Scientists in the U.S. and India have found an inexpensive treatment for a common infection. It could save hundreds of thousands of newborns each year. The treatment com
2017年NPR美国国家公共电台8月
RACHEL MARTIN, HOST: Go online, walk through any health store or supermarket, and you'll find all kinds of products being sold as probiotics. They're being promoted for all kinds of things - preventing upset stomachs, boosting the immune system, figh
2017年NPR美国国家公共电台12月
Beginners. I'm back from a wonderful trip. Do you want to hear about it? Do you know anything about New Zealand? I'll give you some of the most important details. It is situated in Oceania which is in the Pacific Ocean in the Southern Hemisphere. It'
英语博客 A cup of English
Probiotic yoghurt drinks and supplements dont live up to their promises, according to an EU watchdog. They claim to boost your immune system and help digestion. It concluded there is no scientific proof that products such as Yakult have any health be
阅读空间
Senate confirmation hearings will begin July 13th for President Barack Obama's Supreme Court nominee, Judge Sonia Sotomayor. She must be confirmed by a vote of the full Senate before she can take the place of retiring Justice David Souter. Meanwhile
VOA标准英语2009年(六月)
今天我们要学的词是magnet。 Magnet, 吸铁石，引伸为有吸引力的人或物。英国石油公司同意设立一个200亿美元的基金，赔偿石油泄露事件的受害者。有专家警告说， The $20 billion relief fund will be
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