北師大版高中英語選修七unit21humanbiologylesson1練習(xí)題-wenkub
2022-12-14 00:03:23 本頁面
【正文】 r promise to end the worldwide food can GM technology solve world hunger problems?Even if it would,is it the best solution? Despite what it promises,GM technology actually has not increased the production potential(潛力 ) of any fact,studies show the most widely grown GM soybeans,has suffered reduced instance,a report that analysed nearly two decades of research on major GM food crops shows that GM engineering has failed to significantly increase US crop production. Something else,however,has been on the GM seeds are expensive,GM panies tell farmers that they will make good profits by saving money on pesticides(殺蟲劑 ).On the contrary,US government data show that GM crops in the US have produced an overall increase in pesticide use pared to traditional crops.“The promise was that you could use fewer chemicals and boost neither is true,” said Bill Christison,Presi dent of the US National Family Farm Coalition. At the same time,the authors of the book World Hunger,Twelve Myths argue that there actually is mor
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