成本效益研究，成本收益研究

VOA常速英语2014--Study: Immigrants Benefit NYC Economy, Quality of Life 研究表明移民促进纽约经济，提高生活水平

Study: Immigrants Benefit NYC Economy, Quality of Life 研究表明移民促进纽约经济，提高生活水平 NEW YORK New York has long been a magnet for immigrants looking for a better life. A new independent research study also shows that immig

发表于:2018-12-08 / 阅读(23) / 评论(0)

VOA标准英语2014年(四月)

2006年NPR美国国家公共电台九月-Study Details Benefi

And it's time again for StoryCorps, we've been hearing from this oral history project as it crisscrosses the country. In New York city, it's gathering interviews with families and friends who lost loved ones at the World Trade Center. StoryCorps w

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2006年NPR美国国家公共电台

2007年VOA标准英语-Study Highlights Simple, Cost-Effective Health

By Carol Pearson Washington 14 August 2007 Aspirin A new study shows that five simple health measures could help you and many others live a longer life. VOA's Carol Pearson reports on the simple and cost effective steps recommended in this study. A n

发表于:2019-01-20 / 阅读(77) / 评论(0)

2007年VOA标准英语（八月）

HEALTH REPORT - Doctors Study Benefits of Severely Reduced C

HEALTH REPORT - Doctors Study Benefits of Severely Reduced Calories By Jerilyn Watson Broadcast: Wednesday, May 19, 2004 This is the VOA Special English Health Report. Calories are a measure of energy

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健康与经济

DEVELOPMENT REPORT - UN Study Says Gains Would Outweigh Cost

DEVELOPMENT REPORT - UN Study Says Gains Would Outweigh Cost to End Child Labor By Jill Moss Broadcast: Monday, February 16, 2004 This is Robert Cohen with the VOA Special English Development Report.

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农业与发展

Insomnia costs high in U.S.: study

BEIJING, Sept. 2 (Xinhuanet) -- Insomnia costs average U.S. worker 11.3 days, or 2,280 dollars, in lost productivity each year, according to a new study published in journal Sleep. The total cost to the nation is 63.2 billion dollars annually, the st

发表于:2019-02-07 / 阅读(40) / 评论(0)

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basic offshore survival

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brujo

built in channel