单词：Ould
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Blended Organic-Conventional Farming Could Feed World In rural Maryland, an hour-and-a-half drive from Washington, Bill Mason is tilling his fields to plant organic maize and soybeans. About two-thirds of his 340 hectares are organic, but not all of
VOA标准英语2012年(六月)
Two bombing attempts in London failed last night. A Mercedes was parked in front of a popular nightclub before closing time. There were at least 500 patrons inside the club. The Mercedes contained 11 full gasoline cans and 7 containers of nails. Appa
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Melting Arctic Could be Major Source of Greenhouse Gases The melting arctic permafrost could release methane-producing microbes with the potential to accelerate climate change, according to a new study published in Nature. Lead author Janet Jansson,
VOA标准英语2011年(十一月)
Mango Pits, Coconut Shells Could Generate Electricity 'Very little waste' University of Kentucky plant scientist Seth DeBolt and colleagues wanted to find a fuel that people in poor, rural areas could use to generate electricity. While on a study tri
VOA标准英语2012年(二月)
Antibody Could Reverse Diabetes Scientists in California have developed a new approach to treating diabetes which might be able to reverse the disease and not just treat the symptoms. The World Health Organization estimates that more than one-third o
VOA标准英语2011年(十二月)
GOP Contenders Policies Would Raise US Debt: Study Ask any of the Republican presidential hopefuls and they'll tell you the current president has done more harm than good. ROMNEY: Almost everything he's done has made it harder for this economy to reb
VOA标准英语2012年(二月)