单词：canola oil
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单词：canola oil 相关文章
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
The price of oil has dropped around 20 percent in recent weeks, but remains more than double what it was just a couple of years ago. The high price has given oil companies the incentive to revisit old fields long ago abandoned as unprofitable. As VO
VOA标准英语2008年（八月）
This is the VOA Special English Agriculture Report. Not all research begins with a plan. Some studies begin by accident. Meredith Schafer says that is what happened with her and Cynthia Sagers. Cynthia Sagers is a biology professor at the University
2010年VOA慢速英语(九)月
Saudi Arabia is signaling that it is going to boost its supply of oil on its own after failing to convince other oil producers to jointly agree to more production. Several news agencies reported Saturday that the Saudis could increase their oil produ
英语新闻
NEW YORK, July 13 (Xinhua) -- Crude prices rose on Friday as supplies tended to be tight on new Iran sanctions and production problems in North Sea. There was news on Thursday saying that the Obama administration expanded sanctions on Iran, in an eff
英语新闻