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T-3-Q3,实在想不明白是怎么回事

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楼主
发表于 2009-12-20 14:51:50 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
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.
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沙发
发表于 2009-12-20 16:16:30 | 只看该作者
这道题是这样的。你看他说的是使用量减少的很少。但是我们要关注的是什么?是价钱是不是相差很多。那么如果每亩的price非常的昂贵,即使使用量相差无几,但是和单位价钱一乘,可能发现最后节省的金钱很多。所以应该是B
板凳
发表于 2010-3-21 15:04:53 | 只看该作者
thx
地板
发表于 2010-4-6 16:28:48 | 只看该作者
B.       Whether the insecticides typically used on ordinary cotton tend to be more expensive than insecticides typically used on 【other crops.】
比other crops的贵,不表示绝对值大。
OG12里第69题里C选项和此处B选项一样,该题就没有选C。
但是我也不知道选哪一个了。。。。。
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