单词：ecosystem management
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This is Scientific Americans 60-second Science. Im Karen Hopkin, This will just take a minute. Have you ever said, I know it like the back of my hand? Well, how well do you know the back of your hand, or the back of your knee, or behind your ears? Pr
Scientific American(五)月
The legendary political economist Peter Drucker has died at age 95. Drucker wrote more than 3 dozen books and countless articles, but for such a prolific writer, he offered rather pithy advice. The most important thing is to know what you're good at,
2005年NPR美国国家公共电台
DEVELOPMENT REPORT - Home-Based Management of Malaria By Karen Leggett Broadcast: Monday, May 31, 2004 This is Robert Cohen with the VOA Special English Development Report. Malaria is estimated to kil
农业与发展
Study: Giving Local Fishermen Control Prevents Overfishing Exponential decay Tropical coral reefs are fertile fishing grounds for some 200 million small-scale fishers around the world. But many of these reefs are in decline. Tim McClanahan with the W
VOA标准英语2012年(四月)
Kenya's ocean waters are home to five out of the world's eight species of turtles. All are classified as either endangered or critically endangered, and are threatened by poaching, fishing nets, development and pollution. The conservation groups Wata
VOA标准英语2010年(七)月
BEIJING, Nov. 13 (Xinhua) -- China will next year introduce a regulation to better manage the housing files of the country in terms of resources and applicants, according to an official announcement on Tuesday. The announcement, posted on the website
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