[医] 发生热量的, 增加热能的

VOA慢速英语2010年-Christmas 2010 in America: Three Stori

FAITH LAPIDUS: Welcome to THIS IS AMERICA in VOA Special English. Im Faith Lapidus. This week on our program we hear from some Americans about Christmas past, present and future. (MUSIC) FAITH LAPIDUS: Jeffrey Davis remembers Christmas two years ago

发表于:2018-12-01 / 阅读(97) / 评论(0)

2010年VOA慢速英语(十二)月

VOA标准英语2011--Calfornia Foundation Announces $10 Million Genetics Prize

Calfornia Foundation Announces $10 Million Genetics Prize The X Prize Foundation is offering a $10 million prize to the reseach team that excels at fast, accurate and cheap genetic sequencing. On Wednesday, the California-based organization, which us

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VOA标准英语2011年(十月)

名人演讲 "The Great Silent Majority"

Good evening, my fellow Americans. Tonight I want to talk to you on a subject of deep concern to all Americans and to many people in all parts of the world, the war in Vietnam. I believe that one of the reasons for the deep division about Vietnam is

发表于:2018-12-30 / 阅读(81) / 评论(0)

名人演讲

Jonathan Drori:存蓄数十亿种子的原因

在TED U 2009的这个简短的演讲中，Jonathan Drori鼓励我们保护生物多样性 -- 从一颗颗种子做起。他提醒我们要保护人类赖以生存的植物，同时他也给大家描述了千年种子库这样一个美好的远景，在

发表于:2019-01-05 / 阅读(86) / 评论(0)

TED公开课:生态谜云

2005年NPR美国国家公共电台八月-Chinese Firm Out of Running for Unocal

The Chinese offshore oil corporation known as CNOOC has abandoned its bid for UNOCAL. This would have been the largest-ever purchase of an American company by a Chinese firm. CNOOC had put forth a bid that was higher than the competing bid from US o

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2005年NPR美国国家公共电台

2007年VOA标准英语-Scientists Find Gene Linking Lifespan to Calori

By David McAlary Washington 02 May 2007 U.S. researchers have discovered a gene that promotes longer life in earthworms that eat much less than normal. Humans have similar genes, and VOA's David McAlary reports that, if they work the same way as in t

发表于:2019-02-06 / 阅读(85) / 评论(0)

2007年VOA标准英语（五月）

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Asymmetric volatility