标签：yield 相关文章

VOA常速英语2008年-Gene Therapy Yields Results Against Rare Form o

By Robert Raffaele Washington 29 April 2008 For the first time, scientists have used gene therapy to dramatically improve sight in people with a rare, inherited form ofblindness. Researchers in Philadelphia and London are calling the results a milest

发表于:2019-01-03 / 阅读(104) / 评论(0) 分类 VOA常速英语2008年（四月）

VOA标准英语2009年-New Initiative to Boost Crop Yield in South Asi

A new international initiative to increase grain crop yields could help raise incomes for six million farmers in South Asia and combat hunger in one of the poorest regions of the world. Indian farmer women winnow mustard crop at Baraikapurva village

发表于:2019-01-13 / 阅读(89) / 评论(0) 分类 VOA标准英语2009年(一月)

[科学美国人60秒] SSS 2015-12-02

A lot formally low income neighborhoods are becoming /. The people moving in, bring money, and racial biosise, which contributed to them fewing the new suroundings differently. Depending on the race of those who troditionaly live there. That's accord

发表于:2019-01-20 / 阅读(65) / 评论(0) 分类 2015年Scientific American(十二)月
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