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本贴相关题目 TN-11-CR-3 (VQEX)

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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?

AWhether farmers who tried the modified cotton seed had ever tried growing other crops from genetically modified seed
BWhether the insecticides typically used on ordinary cotton tend to be more expensive than insecticides typically used on other crops
CWhether for most farmers who grow cotton it is their primary crop
DWhether the farmers who have tried the modified seed planted as many acres of cotton, on average, as farmers using the ordinary seed did
EWhether most of the farmers who tried the modified seed did so because they had previously had to use exceptionally large quantities of insecticide

正确答案: D

again about 天山-3-3

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lujiandog

楼主

发表于 2004-12-23 16:47:00 | 只看该作者

again about 天山-3-3

天山-3-3

Q3:

Scientists have made genetic modifications to cotton to increase its resistance to insect pests. According to farmers’ reports, 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 farmers 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 .

I have read a lot discussion about this question.but i am still not sure which answer is the best

answer,is it possible that this 问题是考样本是否有代表性，因此答案 D回答结论 “According to farmers’ reports, 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.’ 是否正确
so i thank that D maybe the right answer?
hope NN explain it to me?
thank a lot?