By Nancy Steinbach Broadcast: November 5, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. A new blood test could give doctors a better way to tell if a person is in danger o

发表于:2018-12-15 / 阅读(37) / 评论(0) 分类 VOA2003(下)-环境与健康

d-Pinoresinoldi-O-b-glucopyranoside 松脂酚双吡喃葡萄糖甙 d-Pinoresinol d-松脂素 Piperitone 胡椒酮 Plantaginin 车前甙 Platycodin A, C, D 桔梗皂甙A,C,D Podophyllotoxin 鬼臼毒

发表于:2019-01-03 / 阅读(87) / 评论(0) 分类 医务英语

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-08 / 阅读(48) / 评论(0) 分类 Scientific American(四)月

THIS IS AMERICA - Second Chances for Prisoners, Horses and the Unemployed; Dogs Help Children Learn to Read CAROLYN PRESUTTI: Welcome to THIS IS AMERICA in VOA Special English. Im Carloyn Presutti. STEVE EMBER: And Im Steve Ember. This week on our sh

发表于:2019-01-12 / 阅读(59) / 评论(0) 分类 2012年VOA慢速英语(八)月

By Mary Morningstar Washington 01 April 2006 Kenny Rogers Legendary singer Kenny Rogers has recorded more than 60 albums that have sold over 100 million copies worldwide. He made his first appearance

发表于:2019-01-31 / 阅读(104) / 评论(0) 分类 2006年VOA标准英语(四月)

In 2001, a team from Tel Aviv University argued that B. permians were almost identical to a strain of modern bacteria, Bacillus marismortui, found in the Dead Sea. 2001年,以色列特拉维夫大学的一个小组认为,二叠纪芽孢杆菌与一

发表于:2019-02-17 / 阅读(71) / 评论(0) 分类 万物简史