缩酮氯苄青霉素,海他西林,海他青霉素

2007年VOA标准英语-Antibiotic Resistance Fast-Growing Problem Worl

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

发表于:2018-12-16 / 阅读(148) / 评论(0)

2007年VOA标准英语（二月）

美国国家公共电台 NPR Probiotics For Babies And Kids? New Research Explores Good Bacteria

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

发表于:2018-12-17 / 阅读(122) / 评论(0)

2018年NPR美国国家公共电台5月

60秒科学:Do Rainforests Create Rain?

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

发表于:2019-01-02 / 阅读(196) / 评论(0)

60秒科学

SSS 2009-05-07

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

发表于:2019-01-08 / 阅读(156) / 评论(0)

Scientific American(五)月

美国国家公共电台 NPR Probiotic Bacteria Could Protect Newborns From Deadly Infection

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

发表于:2019-01-16 / 阅读(169) / 评论(0)

2017年NPR美国国家公共电台8月

美国国家公共电台 NPR Could Probiotics Protect Kids From A Downside Of Antibiotics?

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

发表于:2019-01-16 / 阅读(139) / 评论(0)

2017年NPR美国国家公共电台12月

美国国家公共电台 NPR 'Tough Guy' Farmers Stand Up To Italian Mafia — And Win

'Tough Guy' Farmers Stand Up To Italian Mafia And Win play pause stop mute unmute max volume 00:0004:59repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin. SC

发表于:2019-01-16 / 阅读(150) / 评论(0)

2016年NPR美国国家公共电台9月

经济学人:黑手党雄踞一方地盘争夺战悄然打响

Europe Mafias on the move 欧洲黑手党正在扩张 Northward creep 罪恶之手伸向北方 In Italy Mafia-organised crime is no longer only a southern phenomenon意大利黑手党犯罪不再局限于南部地区 TERRACINA is a sprawling town so

发表于:2019-01-27 / 阅读(150) / 评论(0)

经济学人财经系列

英语摇滚歌曲:Don't Waste the Pretty

摇滚:Allison Iraheta - Don't Waste the Pretty 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度

发表于:2019-02-01 / 阅读(138) / 评论(0)

英文摇滚歌曲

VOA常速英语2008年-Calabrian Mafia Leader Nabbed

By Sabina Castelfranco Rome 19 February 2008 Italian police have arrested the leader of the Calabrian mafia, which has parlayed drug trafficking to become more powerful than the more famous Sicilian mob. Clan feuds of the powerful 'Ndrangheta organiz

发表于:2019-02-03 / 阅读(158) / 评论(0)

VOA常速英语2008年（二月）

英语摇滚歌曲:Allison Iraheta - Holiday

摇滚:Allison Iraheta - Holiday 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度,崭露出来的

发表于:2019-02-03 / 阅读(121) / 评论(0)

英文摇滚歌曲

专家:益生菌酸奶并非有益肠道健康

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

发表于:2019-02-04 / 阅读(140) / 评论(0)

阅读空间

英语摇滚歌曲:Allison Iraheta - Just Like You

摇滚:Allison Iraheta - Just Like You 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度,崭露出

发表于:2019-02-08 / 阅读(123) / 评论(0)

英文摇滚歌曲

英语摇滚歌曲:Allison Iraheta - No One Else

摇滚:Allison Iraheta - No One Else 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度,崭露出来

发表于:2019-02-18 / 阅读(135) / 评论(0)

英文摇滚歌曲

英语摇滚歌曲:Allison Iraheta - Pieces

摇滚:Allison Iraheta - Pieces 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度,崭露出来的明

发表于:2019-02-18 / 阅读(165) / 评论(0)

英文摇滚歌曲

英语摇滚歌曲:Friday I'll Be Over

摇滚:Allison Iraheta - Friday I'll Be Over 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度,崭

发表于:2019-02-25 / 阅读(128) / 评论(0)

英文摇滚歌曲

英语摇滚歌曲:D Is for Dangerous

摇滚:Allison Iraheta - D Is for Dangerous 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度,崭露

发表于:2019-02-25 / 阅读(167) / 评论(0)

英文摇滚歌曲

英语摇滚歌曲:Allison Iraheta - Trouble Is

摇滚:Allison Iraheta - Trouble Is 相关介绍：首单Friday Ill Be Over U足以让人震撼于今年美偶新锐女将的风采.JIVE唱片公司的CEO兼主席Barry Weiss在接受采访时说:她强有力的嗓音,积极进取的态度,崭露出来

发表于:2019-02-25 / 阅读(151) / 评论(0)

英文摇滚歌曲

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angle of glide chute

appropriate person

architecture of the Miao nationality