蓖麻叶枯病菌

SSS 2009-08-31

The space shuttle Discovery, mission STS-128, is in orbit right now. With some fascinating people on board. Pilot Kevin Ford became interested in flying when he was a kid and read the book Carrying the Fire, by Michael Collins, command module pilot o

发表于:2018-12-24 / 阅读(44) / 评论(0)

Scientific American(八)月

2007年VOA标准英语-Minority Populations Growing in Many US Distric

By Brian Wagner Miami, Florida 15 August 2007 U.S. minority population are expanding New data from the U.S. Census Bureau shows that black, Asian, Hispanic and other minority populations are expanding in many districts where whites were once dominant

发表于:2019-01-07 / 阅读(114) / 评论(0)

2007年VOA标准英语（八月）

AMERICAN MOSAIC - 'Betty Rules': Is It Punk? Pop? Alternativ

AMERICAN MOSAIC - 'Betty Rules': Is It Punk? Pop? Alternative? Decide for Yourself By Shelley Gollust,Nancy Steinbach Broadcast: Friday, May 06, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA S

发表于:2019-01-08 / 阅读(121) / 评论(0)

American Mosaic

2007年VOA标准英语-President Bush Commits to Development of Altern

By Mil Arcega Washington, DC 25 January 2007 watch Alternative Fuels report Harvesting corn to make alternative fuel President Bush says emerging technologies will help the United States reduce its dependence on foreign oil and protect the environme

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2007年VOA标准英语（一月）

VOA标准英语2010年-Almost Half of Americans Use Alternati

Growing demand prompts universities, US government to get involved in treatment, research Susan Logue Koster | Washington, DC 18 August 2010 Researchers at the National Institutes of Health say that nearly 40 percent of adults have used some type the

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VOA标准英语2010年(八)月

EDUCATION REPORT - U.S. Foundations Expand Support for Afric

EDUCATION REPORT - U.S. Foundations Expand Support for African Universities By Nancy Steinbach Broadcast: Thursday, September 29, 2005 I'm Shep O'Neal with the VOA Special English Education Report. Si

发表于:2019-01-30 / 阅读(63) / 评论(0)

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学英语单词

agar-precipitation

algebra of regular represent

application processing function

attain

attain the ascendance

axial current

ball-by-ball