【OG24-756题】Scientists have modified feed corn genetically, increasing its resistance to insect pests. Farmers who tried out the genetically modified corn last season applied less insecticide to their corn fields and still got yields comparable to those they would have gotten with ordinary corn. Ordinary corn seed, however, costs less, and what these farmers saved on insecticide rarely exceeded their extra costs for seed. Therefore, for most feed-corn farmers, switching to genetically modified seed would be unlikely to increase profits.Which of the following would it be most useful to know in order to evaluate the argument? _mofa留学圈mofaGRE在线题库系统_GRE在线搜题_GRE题库解析_GRE真题机经_GRE课程_GRE培训机构

Help

右上角的时钟图标会对每道题和所有题计时
右上角的文件夹点击可以打开和关闭当前题号
点击右上角的星星图标，所有被收藏的题目均可在“我的”-“收藏”中找到
点击右下角 Next进入下一题。注意：如果你没有做当前题目，你将不可以进入下一题
点击左下角的 Quit或 End Exam 即可退出练习

End Section Review

yes

End Exam

yes

Answer Edit Confirmation

你想更改这个问题的答案吗?

Yes,换答案

No，保留原始答案并回到问题上

最新题目

题目内容

纠错

Scientists have modified feed corn genetically, increasing its resistance to insect pests. Farmers who tried out the genetically modified corn last season applied less insecticide to their corn fields and still got yields comparable to those they would have gotten with ordinary corn. Ordinary corn seed, however, costs less, and what these farmers saved on insecticide rarely exceeded their extra costs for seed. Therefore, for most feed-corn farmers, switching to genetically modified seed would be unlikely to increase profits.

Which of the following would it be most useful to know in order to evaluate the argument?

Whether there are insect pests that sometimes reduce feed-corn yields, but against which commonly used insecticides and the genetic modification are equally ineffective Whether the price that farmers receive for feed corn has remained steady over the past few years Whether the insecticides typically used on feed corn tend to be more expensive than insecticides typically used on other crops Whether most of the farmers who tried the genetically modified corn last season applied more insecticide than was actually necessary Whether, for most farmers who plant feed corn, it is their most profitable crop

正确答案： D

参考解析

提交我的解析

题干翻译
上一季，转基因玉米在玉米田使用更少的杀虫剂，且产量仍与普通玉米相当。然而，普通玉米种子成本更低，这些农民在杀虫剂上节省的钱很少超过他们在种子上的额外花费。因此，对于大多数饲料玉米农民来说，转向转基因种子不太可能增加利润。 逻辑链
GM corn vs normal corn → little profit from GM 问题类型
评价题 推理过程
论点是大多数饲料玉米农民转向转基因种子不太可能增加利润，论据是转基因种子成本高，节省的杀虫剂费用少。需要找到一个信息，其不同回答能对论点产生不同影响，即判断转向转基因种子是否真的不能增加利润。 选项分析
A选项：是否存在某些害虫，对其普通杀虫剂和转基因都无效。这与转向转基因种子能否增加利润没有直接关联，因为重点在于成本和利润的关系，而非对特定害虫的效果，排除。 B选项：过去几年农民收到的饲料玉米价格是否稳定。价格稳定与否和转向转基因种子本身能否增加利润并无直接联系，不能帮助评价论点，排除。 C选项：饲料玉米通常使用的杀虫剂是否比其他作物使用的杀虫剂更贵。比较的是饲料玉米与其他作物杀虫剂价格，和转向转基因种子的利润问题无关，排除。 D选项：上一季尝试转基因玉米的大多数农民是否使用了比实际必要量更多的杀虫剂。如果是，那么就说明有降低成本的空间，转向转基因种子可能增加利润；如果否，则支持了原论点，转向不太可能增加利润，该项可以帮助评价论点，当选。 E选项：对于大多数种植饲料玉米的农民来说，它是否是最赚钱的作物。这与转向转基因种子能否增加饲料玉米本身的利润无关，排除。

题目讨论 (如果对题目有任何的疑惑，欢迎在这里提出来，大家会帮你解答的哦~)

还没有人评论,赶快抢个沙发~

做题笔记

参考解析

题目讨论 (如果对题目有任何的疑惑，欢迎在这里提出来，大家会帮你解答的哦~)

请选择错误类型：

请描述一下这个错误：