组合测量

SSS 2010-12-16

This is Scientific Americans 60-Second Science. I'm Cynthia Graber. This will just take a minute. 'Tis the season when were eating. And we want to be sure that the kitchen staff are following protocols that keep us from getting sick. So how best to h

发表于:2018-12-24 / 阅读(60) / 评论(0)

Scientific American(十二)月

SSS 2008-02-19

This is Scientific American's 60-Second Science. I'm Steve Merskey. Got a minute? Some strong comments from John Holdren, director of the science technology and public policy program in Harvards JFK school of government. Saturday, the annual meeting

发表于:2019-01-08 / 阅读(40) / 评论(0)

Scientific American(二)月

科学美国人60秒 SSS 2014-08-19

This is Scientific America's 60-second Science. This will just take a minute. Losing your job is bad for you, but it could be good for the rest of us. because a study shows the recession lowers mortality in the population over all, even the out-worki

发表于:2019-01-20 / 阅读(32) / 评论(0)

2014年Scientific American(八)月

玻利维亚司机抗议扰乱资本

LA PAZ, Aug. 13 (Xinhua) -- Bolivian drivers paralyzed capital La Paz on Tuesday with marches and blockades to demand higher public transportation fares. Members of various transit workers' unions gathered early in the day at several points around th

发表于:2019-02-05 / 阅读(35) / 评论(0)

英语新闻

VOA双语新闻：南非罢工恐威胁明年世足赛

Up to 70,000 South African construction workers are expected to go on strike Wednesday in a move that will threaten timely completion of stadiums being readied for the FIFA 2010 World Cup. 多达7万名南非建筑工人预计星期三举行罢工。这

发表于:2019-02-14 / 阅读(38) / 评论(0)

VOA双语新闻 2009年7月

美国国家公共电台 NPR 'Whatever It Takes': Government Workers Apply For Unemployment As Shutdown Drags On

LULU GARCIA-NAVARRO, HOST: Federal workers have missed paychecks for the first time since the partial government shutdown started over three weeks ago. Now thousands are doing what once seemed unthinkable - applying for unemployment benefits. WAMU's

发表于:2019-03-04 / 阅读(92) / 评论(0)

2019年NPR美国国家公共电台1月

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