[讨论]急!!!!请教各位逻辑高手

freda_wu910

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.

 

 

 

 

我选的是D 答案是B   不知为何?文中涉及cotton按理跟other crops 扯不上关系

请教请教!!!!

希望解释一下,非常感谢!!!!

sayhello1983

同问，是我也选D

xfi883

答案就是D，你从哪弄得标准答案？

freda_wu910

谢谢告诉我

我的答案也是从cd上下载的,连同gwd24套题的