单词:sigmoid-
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IN THE NEWS - John Kerry Chooses John Edwards for Vice President By Cynthia Kirk Broadcast: Saturday, July 10, 2004 This is Bob Doughty with In the News, in VOA Special English. The Democratic Nationa
Unit 3 Follow the signs! [00:05.20]单元三 跟随标志 [00:07.31]Say and act [00:09.20]说并且行动 [00:11.08]At the swimming pool Don't run!It's dangerous. [00:15.61]正在游泳池要不断游的! 它是危险的。 [00:20.14]Don't jump int
French Experts Question GMO Cancer Study French officials and experts have added their voices to the chorus of criticism over a recent study linking genetically modified corn to tumors in experimental rats. The French national food safety agency join
SCOTT SIMON, HOST: Foods that contain genetically modified ingredients will soon be required to have a special label. NPR's Merrit Kennedy reports that we're now seeing what that label might look like. MERRIT KENNEDY, BYLINE: About two years ago, Con
EDUCATION REPORT – September 12, 2002: 'Liberty’s Kids' Television Show By Jerilyn Watson This is the VOA Special English Education Report. A new public television program is helping American chil
When it comes to the subject of GM foods, the public have a lot to say. As consumers, we can't tell the differences between GMO and non-GMO. Some food we eat daily must contain GMO. Many say that cherry tomatoes and purple sweet potatoes have both be