一个削弱题再想想，有疑问，杀虫剂

crack25 · 发表于 2011-6-25 10:00:06

70.
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Insect infestations in certain cotton-growing regions of the world have caused dramatic increases in the price of cotton on the world market.
Knowing that cotton plants mature quickly, many soybean growers in Ortovia plan to cease growing soybeans, the price of which has long been stable, and to begin raising cotton instead, thereby taking advantage of the high price of cotton to increase their income significantly at least over the next several years.
Which of the following, if true, most calls into question the reasoning on which the plan is based?
A. The cost of raising soybeans has increased significantly over the past several years and is expected to continue to climb.
B. Tests of a newly developed, inexpensive pesticide have shown it to be both environmentally safe and effective against the insects that have infected cotton crops.
有些老套，但是我想问的是关于B： a newly developed, inexpensive pesticide 出现了，意味着Insect infestations有望消除，因此cotton价格不会增高了，所以改种cotton也不一定增加利润，反驳了题干，对，这样想，肯定没有问题，但是我现在又想题目并没有说农民会采用杀虫剂，如果不采用的话，那棉花价格也不会下降，那就不能反驳了。只有采用的话，才能削弱原文，所以这个地方是不是存在这个问题。但是，难道说削弱题的答案可以出现这种模棱两可的情况吗？谢谢

sdcar2010 · 发表于 2011-6-25 10:57:37

Common sense. If you were a farmer and you knew about this cheap, effect pesticide, would you buy it for your cotton field?

crack25 · 发表于 2011-6-25 17:04:31

okay, I understand,for any one, to maximize profits is crucial and he or she will not consider what will happen. They just want to earn much money when they use the pesticide. thanks oh,

I also want to ask this common sense, like in this question, do you think I can use it? because this one is not like usual common sense like sun rise from East..etc

kwok1123 · 发表于 2012-6-27 22:20:51

我觉得有点像囚徒困境

一个削弱题再想想，有疑问，杀虫剂

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