甲紫

SSS 2011-06-22

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

发表于:2018-12-24 / 阅读(64) / 评论(0)

Scientific American(六)月

SSS 2010-03-23

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

发表于:2018-12-24 / 阅读(66) / 评论(0)

Scientific American(三)月

AGRICULTURE REPORT - Restrictions on Methyl Bromide

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(88) / 评论(0)

农业与发展

美国国家公共电台 NPR 'Authenticity Is My Rebellion': Viola Davis On 'Widows,' Steve McQueen And Legacy

(SOUNDBITE OF FILM, WIDOWS) VIOLA DAVIS: (As Veronica) My husband left me the plans for his next job. All I need is a crew to pull it off. AUDIE CORNISH, HOST: Here's the premise of Widows, the action-packed heist thriller from director Steve McQueen

发表于:2019-01-17 / 阅读(38) / 评论(0)

2018年NPR美国国家公共电台11月

美国国家公共电台 NPR Viola Davis Brings A New 'Corduroy' Book To Bear

DAVID GREENE, HOST: I'm David Greene in Culver City, Calif., not far from where I met Viola Davis the other day. The actress was working on her ABC show How To Get Away With Murder. It was an insanely busy day of shooting, and yet she found some time

发表于:2019-01-17 / 阅读(37) / 评论(0)

2018年NPR美国国家公共电台9月

经济学人69:外因遗传与压力新生儿蓝调曲

Science and Technology Epigenetics and stress Baby blues 科技外因遗传与压力新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(58) / 评论(0)

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Apium graveolens dulce

aspergillosis

assonance

athwartships bottom floor

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bandleaders

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