12.The text is most probably taken from ________.
A.a computer book B.a library guide
C.a project handbookD.a newspaper report
答案:D。文章出处判断题。既然是针对于公众的信息,应该是面对普通公众,即选择最大众化的媒体,即资讯报道。
D
(·陕西卷,D)
Ever since they were first put on the market in the early 1990s, genetically modified (GM, 转基因) foods have been increasingly developed and marketed in many countries in the world,mainly on the basis of their promise to end the worldwide food crisis. But 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(潜力)of any crop. In fact studies show that the most widely grown GM crop, GM soybeans, has suffered reduced productivity. For 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 rise. While GM seeds are expensive, GM companies tell farmers that they will make good profits by saving money on pesticides(杀虫剂). On the contrary, US government data show that GM crops in the US have produced an overall increase in pesticide use compared to traditional crops. “The
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