标题: 搜不到这一题 T-3-Q3 在线等 谢谢啦 [打印本页] 作者: free_over 时间: 2010-3-1 14:57 标题: 搜不到这一题 T-3-Q3 在线等 谢谢啦 Scientists have made genetic modifications to cotton to increase its resistance to insect pests. According to farmers’ report, the amount of insecticide needed per acre to control insect pests was only slightly lower for those who tried the modified seed than for those who did not. Therefore, since the modified seed costs more than ordinary seed without producing yields of higher market value, switching to the modified seed would be unlikely to benefit most cotton farmers economically.
Which of the following would it be most useful to know in order to evaluate the argument?
A. Whether farmers who tried the modified cotton seed had ever tried growing other crops from genetically modified seed. B. Whether the insecticides typically used on ordinary cotton tend to be more expensive than insecticides typically used on other crops. C. Whether for most farms who grow cotton it is their primary crop D. Whether the farmers who have tried the modified seed planted as many acres of cotton, on average, as farmers using the ordinary seed did. E. Whether most of the farmers who tried the modified seed did so because they had previously had to use exceptionally large quantities of insecticide.作者: free_over 时间: 2010-3-1 14:58
我选的E 答案是B 不是很明白 。。作者: hughlv 时间: 2010-3-2 01:57
这是道争议题，不做也罢作者: karateguy 时间: 2010-4-17 18:54
曾在BDE中徘徊，最终明白了正确答案B的意义所在。 other crops是指除了ordinary cotton以外的所有，即包括midified crop. 显然能够对结论造成直接影响。
D Whether the farmers who have tried the modified seed planted as many acres of cotton, on average, as farmers using the ordinary seed did. 以前的帖子很多人都对这个选项有好感，其实都是意思没看明白，并不是说每亩产量高，而是说farmers种了更多的棉花（总量），完全不沾边。
E Whether most of the farmers who tried the modified seed did so because they had previously had to use exceptionally large quantities of insecticide. 是我的最初选项，因为以前OG一道类似的题目答案是农民不必要用那么多杀虫剂，但是还是用了过多的那题。受了影响选了E. 其实E要推倒答案要加入许多自己的主观假设，太不直接了。换句话说对E回答yes or no对结婚没有直接影响。作者: mycontrol01 时间: 2010-4-18 16:43
Whether the insecticides typically used on ordinary cotton tend to be more expensive than insecticides typically used on other crops.
