多肽合成仪

AMERICAN MOSAIC - Kids Helping Kids Survive the Effects of K

AMERICAN MOSAIC - Kids Helping Kids Survive the Effects of Katrina By Nancy Steinbach Broadcast: Friday, September 09, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. I'm Doug J

发表于:2018-12-07 / 阅读(197) / 评论(0)

American Mosaic

SSS 2008-04-09

This is Scientific American's 60-Second Science,I'm Christopher Intagliata,got a minute？ Benny Goodman earned his title,the king of swing as a virtuoso of the clarinet,but now a computer in upstate New York has learned to rip him off.Researchers at

发表于:2019-01-08 / 阅读(224) / 评论(0)

Scientific American(四)月

SSS 2008-04-01

This is Scientific Americans 60-Second Science, I am Cynthia Graber, this will just take a minute. The disease hepatitis C might provide a new tool in the fight against HIV AIDS ,say scientists at the Scripps Institute and in the Netherlands.The rese

发表于:2019-01-08 / 阅读(247) / 评论(0)

Scientific American(四)月

VOA标准英语2012--Drug Reverses Alzheimer's in Lab Mice

Drug Reverses Alzheimer's in Lab Mice Researchers working with laboratory mice have stopped the progression of a condition found in the brain of Alzheimer's victims. They've even reversed cognitive decline. But whether the discovery can translate to

发表于:2019-01-14 / 阅读(193) / 评论(0)

VOA标准英语2012年(二月)

VOA标准英语2014--Mad World: 80s New Wave Rock Acts in Their Own Words

Mad World: 80s New Wave Rock Acts in Their Own Words Music fans have already seen songs of the 1960s get their due and the sounds of the 1970s have been endlessly analyzed as well. But what about the 1980s? The authors of a new book are celebrating t

发表于:2019-01-14 / 阅读(204) / 评论(0)

VOA标准英语2014年(六月)

美国研究生入学考试难句解读-3

Themolecularapproachtodetecting peptidehormonesusingcDNAprobes shouldalsobemuchfasterthanthe (60)immunologicalmethodbecauseitcan takeyearsoftediouspurifications toisolatepeptidehormonesandthen developa

发表于:2019-02-06 / 阅读(209) / 评论(0)

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学英语单词

a boo

acidum iopanoicum

acoustical depth sounding

arm indicator

armigeres (armigeres) subalbatus

array-based replication

automatic routing

bear up under

box type vertical drilling machine

breadpan

Burkholder approximation