天山-3-3

cathyzq

我新手，我刚看题目，第一感觉是B，说来说去都是跟价格有关的！所以直觉第一就是这个选项必然跟效益有关，因为杀虫剂的价格也没有便宜多少，而且改良的还价格贵，故此导致最后得出的结论，用一般的种子对于农民来说更经济实惠点！很简单的逻辑！

nornxiaozhu

答案为D，其他的都是无关

sunyan730

以下是引用leeon在2004-12-9 12:45:00的发言：

E不是答案，原文中说的很清楚，杀虫剂只是轻微的减少了。所以如果原来的杀虫剂的量特别大的话，改良的种子还是需要大量的杀虫剂，从而在杀虫剂的使用成本上没有改变，加上modified seed costs more than ordinary seed without producing yields of higher market value，无论E肯定与否，都不能影响原文的结论。

B说的以前的杀虫剂的价格是不是比其它的都贵，如果是的话，那么在使用杀虫剂的成本上，改良的种子降低了，从而影响原文的结论。vice vesa.

同意, 文章的中心一只都是在讨论成本的问题.(COST).而只有b提到成本.

baiyun86

E

Using modified seed probably offers no economic advantage.

But if the farmers who tried modified seed had previously had to use exceptionally large quantities of insecticide, then it is possible that using modified seed is saving them money. The higher cost of the modified seed could be more than offset by savings on insecticide.

[此贴子已经被作者于2008-4-4 16:24:19编辑过]

hansomecd

答案是E

农民在报告中说：slightly lower。也就是说在种植新棉花的过程中也喷洒了很多的农药

但是答案中E提出质疑：农民之所以喷洒了很多农药（did so），不是由于新的棉花也需要很多的农药，而是农民们已经习惯了喷洒很多农药。（可能slightly lower已经远超过新棉花需要的）

所涉及的内容都是文章中提到的，跟argument的相关性最强。

而这个质疑才是most useful to know in order to evaluate the argument

ricee

B，谢谢。

做的时候选E，但回过头来看，E无关。

原文：改良后的种子：PER ACRE 杀虫剂 AMOUNT 少一点点，但种子成本（钱！）高，产出价值（钱！）差不多。结论：ECONOMICALLY（算钱!)不会带来好处。

那么评价标准，当然是看这个少的一点点量是否是一大笔钱。

kokusanhin

Hey guys, the answer should be E.

For those of you who are consultants and have done some operation benchmark projects, rule number 1 is to establish the BASELINE.

We cannot say whether the genetically modified (GM) cottons are more insect resistant simply by comparing the amount of pesticides used by different farmers (some picked the GM cotton, some don't), unless we know the amount they had originally used.

For example, if 1) farmer A had used 100 KG of DDT for his 100-acre cottons when he planted normal seeds and farmer B had used only 50 KG (can be find out once the question in E is answered) and 2) after using GM cotton, farmer A would only need 49 KG (slightly less than 50), the GM cotton certainly performed well to resist insects, with a saving over 50%... Therefore, it would economically benefit all farmers to plant GM cotton.

nancyguona

lawyer果然强悍~

虽然也选对了，但真不那么理直气壮~

buda

我不想老说lawyer有多好多牛，但是我真的没办法啊！！真的是讲的很明白啊。

我已经崇拜至极了，我怎么感觉每次看完lawyer的帖子我都快热泪盈眶了。说的那叫一个明白啊，终于体会到为什么有人会把lawyer所有的关于逻辑解题的帖子都搜出来看。这也是一种思维上的享受。嗯，这几天我就一直在享受着lawyer给我带来的思维上的火花。

leo-liu

没有一个选项是我很明确肯定的,看了这么多讨论还是糊涂

我做题的时候选择了E,比较倾向这个选项

如果说B中other crops包括modified seeds所以就怎么怎么样,这种推理我觉得过于牵强

估计这道题出的有问题,逻辑题很少碰到这样的争议题