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?
Whether farmers who tried the modified cotton seed had ever tried growing other crops from genetically modified seed.
Whether the insecticides typically used on ordinary cotton tend to be more expensive than insecticides typically used on other crops.
Whether for most farmers who grow cotton it is their primary crop.
Whether the farmers who have tried the modified seed planted as many acres of cotton, on average, as farmers using the ordinary seed did.
Whether most of the farmers who tried the modified seed did so because they had previously had to use exceptionally large quantities of insecticide.
大家在做这类题目的时候可以仔细考虑一下隐藏的asm。当然实战的时候不建议这样,这个靠平时练习。。。还有恳求自己考试的时候不要死机了,我今天早上做verbal就死机了。。
(因為字數超了,所以我在word裡分段copy進來的,大家講究的看一下哈。。順便調成了簡體)
谢谢解答这么多!~
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