单词：5-Phenylphenoxymethylpenicillin
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Captain Benito Cereno hurried aboard his ship. It was ready to sail. A bright sun and a soft breeze promised good weather ahead. The ship's anchor was raised. And the San Dominick -- old but still seaworthy - moved slowly out of the harbor of Valpara
2017年VOA慢速英语(十一)月
Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s
万物简史
Identity Thieves’ New Ploy: Pharming 2 How do people pharm? Pharming scams take a few different forms: Attackers could use malicious code, such as a virus, planted on a user’s PC to track keystrok
彭蒙惠英语
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Scientific American(六)月
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
Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting
Scientific American(三)月
We present the second of three parts of the short story Benito Cereno. It was written by Herman Melville. Last week, we told how African slaves on a Spanish ship rebelled in seventeen ninety-nine. They killed most of the Spanish sailors. Only the cap
2017年VOA慢速英语(十二)月
We present the last of three parts of the short story Benito Cereno. It was written by Herman Melville. As we told you in earlier parts of our story, rebel slaves seized the ship San Dominick off the coast of Chile. They killed many of its officers a
2017年VOA慢速英语(十二)月
We present the first of three parts of the short story Benito Cereno. It was written by Herman Melville. Here is Shep O'Neal with the story. Captain Benito Cereno hurried aboard his ship. It was ready to sail. A bright sun and a soft breeze promised
2018年VOA慢速英语(九)月
We present the last of three parts of the short story Benito Cereno. It was written by Herman Melville. As we told you in earlier parts of our story, rebel slaves seized the ship San Dominick off the coast of Chile. They killed many of its officers a
2018年VOA慢速英语(十)月
We present the second of three parts of the short story Benito Cereno. It was written by Herman Melville. Last week, we told how African slaves on a Spanish ship rebelled in seventeen ninety-nine. They killed most of the Spanish sailors. Only the cap
2018年VOA慢速英语(十)月
AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals
农业与发展
歌曲： If You Feel My Love 艺人： Blaxy Girls 音乐星级： ★★★★★ 所属专辑： If You Feel My Love 发行年代： 2008 风格： Pop Rock 介绍： Blaxy Girls，这由漂亮美眉组成的年轻摇滚乐队来自罗马尼亚。成员分别为：Rucsy - 主音/吉他,Amalia - 吉他,Cristina -
音乐咖啡厅
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
Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the
Scientific American(十一)月
Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长
经济学人科技系列
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf
英语新闻
X Xerox/xerox n.复印机 v.复印 X-ray n.X射线,X光 Y yard n.院子,场地;码 yawn v.打呵欠 n.呵欠 year n.年,年度 yearly a./ad.每年,一年一度(的) yeast n.酵母 yell v.叫喊 yellow
考研英语