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This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Pasteurization makes food safe by heating microbes to death. But the high temperatures can destroy some nutrients too. A possible alternative? Ultrahigh
发表于:2019-01-08 / 阅读(142) / 评论(0)
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Many people love what they consider a suntan's healthy glow. But the color you get from eating vegetables might be the most attractive glow of all. Tha
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AUDIE CORNISH, HOST: Most people go to the fair to ride the Tilt-A-Whirl or eat funnel cakes, but not our Planet Money team. Robert Smith and Kenny Malone traveled to the Ohio State Fair to learn the secret art of selling people things they might not
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2017年NPR美国国家公共电台8月