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美国国家公共电台 NPR Bats And Tequila: A Once Boo-tiful Relationship Cursed By Growing Demands

LULU GARCIA-NAVARRO, HOST: Now this Halloween story about bats and spirits - not spooky spirits. We're talking tequila. NPR's Neda Ulaby went to a Mexican bar in Washington, D.C., to research the connection between bats and booze. NEDA ULABY, BYLINE:

发表于:2018-12-17 / 阅读(26) / 评论(0)

2017年NPR美国国家公共电台10月

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

Population explosion

Alice: Hello, I'm AliceFinn: And I'm Finn.Alice: And this is 6 Minute English! This week were talking about populationgrowth and the effects it might have on the world. At the moment itsestimated that there are about 7 billion people on the planet. F

发表于:2019-01-07 / 阅读(76) / 评论(0)

六分钟英语

2007年VOA标准英语-Multi-Country Gene Study Points to Causes of Au

By Carol Pearson Washington, DC 20 February 2007 watch Autism report Scientists working to solve the mysteries of autism say their research points to genetic causes. The results come from the largest study ever done on the disorder. The study looked

发表于:2019-01-12 / 阅读(79) / 评论(0)

2007年VOA标准英语（二月）

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)

经济学人科技系列

World Population Day（世界人口日）

2004 marks the 10th anniversary of the groundbreaking International Conference on Population and Development (ICPD) in Cairo, Egypt, in 1994. Ten years ago, on the eve of World Population Day, a new campaign was launched to raise awareness of how int

发表于:2019-02-03 / 阅读(65) / 评论(0)

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Antirrhinum coulterianum