T-3-Q3，是GWD24里的

nannan1202

找了很久没有找到，因为题号很confusing~~~

T-3-Q3.
            

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.

 

答案选B，不明白耶~~~请NN们指点下吧....

如果以前有讨论过了麻烦给我一个连接吧~~~

Derek2008

选E,因为改良的目的是将INSECTICE用量降低，即使是每亩只降低一点，但如果FARMER以前用了exceptionally large quantites of insecticide,就有利可图了。

daddybear

不可能是B，如果题没抄错只能是E

hziu2

我的答案也是B.我选的E.感觉GWD里好些答案都有问题,看不懂.

wellner

原来这道题几乎是史上讨论最多的一题，盖了200多层楼，呼呼。

大部分人在B、E间争论激烈。拥D的大概有六分之一吧。这道题的确黑人憎。但是B确实好像有道理，棉花杀虫剂横向比较较贵的话，节约一点点都可行啊，比如一毫升就贵10刀的话，节约1000毫升省不少银子呢。D有点推得远了，把农药扩展到种植面积，的确牵强了。E呢，说看农民用新品的原因是否是因为过去要使用大量的杀虫剂。根据题意，好像使用新品的量并没有减少多少啊

boum

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