单词：nontransgenic
单词：nontransgenic 相关文章
This is the VOA Special English Agriculture Report. American farmers first planted genetically engineered crops in nineteen ninety-six. Today eighty percent of the cropland for soybeans, maize and cotton in the United States is transgenic. Genetic en
2010年VOA慢速英语(四)月
VOICE ONE: This is SCIENCE IN THE NEWS, a program in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Shirley Griffith. This week, we will tell about a study involving monkeys and a gene from jellyfish. We will tell about an agreement to ban
VOA慢速英语2009年（六）月
Supercharged Plants May Mean More Crop Production 增压植物或能大量增产 One day, supercharged plants may help feed people around the world. Supercharged plants are ones that grow faster than normal plant life. Scientists can speed up the gro
2016年VOA慢速英语(十二)月
One of the concerns about working with genetically modified crops has been that vegetation growing in agricultural fields might escape out into the world. Now, for the first time in the U.S., researchers report a large population of GM crops beyond t
60秒科学
One of the concerns about working with genetically modified crops has been that vegetation growing in agricultural fields might escape out into the world. Now, for the first time in the U.S., researchers report a large population of GM crops beyond t
Scientific American(八)月
A team sees promise in genetically engineered tobacco, and hopes for similar results with other crops. Transcript of radio broadcast: 02 June 2008 This is the VOA Special English Agriculture Report. One cause of the current food crisis is drought. F
VOA慢速英语2008年（六）月