扫描二维码，直接登录
题库 / OG2017V-CR-178
Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year. This year the plantings are being seriously damaged by bollworms. Bollworms, however, are not necessarily developing resistance to the cotton's insecticide. Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions. So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.
In evaluating the argument, which of the following would it be most useful to establish?
Whether corn could be bioengineered to produce the insecticide
Whether plantings of cotton that does not produce the insecticide are suffering unusually extensive damage from bollworms this year
Whether other crops that have been bioengineered to produce their own insecticide successfully resist the pests against which the insecticide was to protect them
Whether plantings of bioengineered cotton are frequently damaged by insect pests other than bollworms
Whether there are insecticides that can be used against bollworms that have developed resistance to the insecticide produced by the bioengineered cotton
文章想说不是因为抗药性而是种植量太多造成的更严重的虫害，所以答案里面要找一个正说会支持文章点与反说会驳斥文章的观点的：
B取是，那么说明产生杀虫剂的cotton和不产生杀虫剂的cotton均遭到了大肆破坏，那么说明不是因为抗药性的原因而是另有原因，很有可能就是文章说的种植太多的缘故
B取否，那么说明不产生杀虫剂的cotton没有收到虫害，那么虫子只对产生杀虫剂的cotton造成了损坏，那么说明很有可能不是种植数量而是自身产生杀虫剂的缘故（至于这个缘故具体是什么我们无从得知，反正就和控制组与对照组的不同然后得出来的结论这种思路有点像）导致的减产。
登录 或 注册 后可以参加讨论