天山3-3？？？请教并确认答案！！

jenny22

[求助]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 hadpreviously had to use exceptionally large quantities of insecticide

答案到底是B还是D？

个人觉得应该是D

jenny22

up up!

wycg

我同意选B.

wycg

http://forum.chasedream.com/dispbbs.asp?BoardID=24&ID=142230&replyID=1322918&skin=1

你看一下"beibeizhu"的解释,差不多就是这个意思.

期待蔚蓝

谁能解释一下D为啥不对呢？

晴天小狗

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

无论他们试过多少acres，也不能影响原文：the amount of insecticide needed per acre to control insect pests

但是我选不出正确答案

hohoo

这个题目应该是选择D。这个可以考察a little的validity。因为如果种的亩数多的话，表明的就是更可信的平均值，就是说样本空间足够大，有说服力。 but B is talking about some other corps, non-related at all~

rethink1224

我选E.