LZMM辛苦了。你可以在逻辑大权里用control+C的搜索功能找这些题。
28.Plant scientist have been able to genetically engineer vegetable seeds to produce crops that are highly resistant to insect damage.Although these seeds currently cost more thatn conventional seeds,their cost is likely to decline.Moreover, farmers planting them can use far less pesticide, and most consumers prefer vegetables grown with less pesticide,Therefore,for crops for which these seeds can be developed, their use is likely to become to norm.
Which of the following would be most useful to know in evaluating the argument above?
A Whether plant scientists have developed insect-resisitant seeds for every crop that is currently grown commercially
B Whether farmers typically use agricultural pesticides in larger amounts than is necessary to prevent crop damage
C Wheher plants grown from the new genetically engineered seeds can be kept completely free of insect damage.
D Whether seeds genetically engineered to produce insect-resistant crops generate significantly lower per acre crop yields than do currently used seeds
E Whether most varieties of crops currently grown commercially have greater natural resistance to insect damage than did similar varieties in the past
答案是D 我想问C 和E为什么不对？谢谢
再问那位大侠能告诉我新东方的资料和CR大全是什么对应关系？上面的题是我一点一点敲上去的....
E错在全篇在讨论转基因作物，而E讨论现在大面积种植的作物，无关。
C也是无关，原文说转基因作物好处是抗虫害和少用农药，是从经济方面考虑的，能否完全避免虫害不能影响新转基因作物的推广，完全一次太绝对。
LZMM辛苦了。你可以在逻辑大权里用control+C的搜索功能找这些题。
LZMM辛苦了。你可以在逻辑大权里用control+C的搜索功能找这些题。
用的查找，好像没有啊，也不知道是什么对应关系啊......
确实没有
具体怎么用CONTROL+C搜索啊，那里有指导的帖子呢？
我XDF的绿皮书里的疑问不少，要是全自己打出来问大家，自己累死，大家也烦死，所以请那位指导一下了。。。。
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