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VOA标准英语2015--Rock-Consuming Organisms Alter Views of Life Processes

Rock-Consuming Organisms Alter Views of Life Processes LOS ANGELES Kenneth Nealson can be described in many ways, including expert in microbiology and biochemistry. But that's not the one he is most proud of. People call me the 'father of Shewanella,

发表于:2018-12-08 / 阅读(42) / 评论(0)

VOA标准英语2015年(一月)

SSS 2010-09-21

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? Theres a cool new Web siteand iPhone appthat could come in handy in a wide variety of circumstances. Its called Time Tree. And it tells you how closely related any two org

发表于:2018-12-24 / 阅读(31) / 评论(0)

Scientific American(九)月

注意街头食品的卫生

92 注意街头食品的卫生 DEVELOPMENT REPORT September 10, 2001: Street Food SafetyBy George Grow （Start at 1'01

发表于:2019-01-02 / 阅读(37) / 评论(0)

科技之光

SSS 2008-05-05

This is Scientific American's 60-Second Science, Im Steve Mirsky. Got a minute? Biologists often attempt to construct a genealogy that shows the relationships of all life on earth. One well-accepted effort compares the nucleic acid sequences that cod

发表于:2019-01-08 / 阅读(54) / 评论(0)

Scientific American(五)月

高中英语人教版高一年级上18

[00:11.60]WARMING UP [00:16.04]How many new uses can you think of for the folowing items? [00:36.49]reminds us of the appearance of nanotechnology, [00:53.76]according to which nothing is useless and [01:04.91]no garbage or waste material to speak of

发表于:2019-01-10 / 阅读(165) / 评论(0)

高中英语人教版高一年级

VOA慢速英语20060821a

DEVELOPMENT REPORT - Cooking Meals With the Sun for FuelBy Jill Moss Broadcast: Monday, August 21, 2006 I'm Gwen Outen with the VOA Special English Development Report. Millions of people around the wo

发表于:2019-01-30 / 阅读(66) / 评论(0)

2006年慢速英语（八）月

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a put-up job

acetobacter melarogenum

asym-dipheny hydrazine