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NPR新闻:奥巴马周一公布2013财政年度预算案(2/3)

President Obama will unveil his budget for the next fiscal year on Monday. To find out more about the budget proposal, Steve Inskeep talks to David Wessel, economics editor at The Wall Street Jou...

两项调查研究支持光脚跑步 （2）

两项调查研究支持光脚跑步 Hints:HarvardDaniel LiebermanThey divided the runners into 3 groups. One group had always run shoeless. Another group had always run with shoes. And the 3rd group had cha...

美科学家发现猛犸象化石 (2)

Harris; ZedHarris is chief curator at the Page Museum, which houses treasures from the tar pits. He says only partial remains of mammoths were found at this site before, and Zed is thelargest eve...

整洁的农场 远离乳腺癌 (2)

Ynte Schukken SchukkenThe same is true for milking machines, milking areas and pasture lands -- the cleaner the better, he says. Milkers should always wash their hands. And, in the United States,...