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 be most useful to establish?
A.Whether corn could be bioengineered to produce the insecticide
B.Whether plantings of cotton that does not produce the insecticide are suffering unusually extensive damage from bollworms this year
C.Whether other crops that have been bioengineered to produce their own insecticide successfully resist the pests against which the insecticide was to protect them
D.Whether plantings of bioengineered cotton are frequently damaged by insect pests other than bollworms
E.Whether there are insecticides that can be used against bollworms that have developed resistance to the insecticide produced by the bioengineered cotton
答案B
我看不太懂題目的意思,講一下我的認知
某種生物改造的棉花可以產生殺蟲劑對抗壞蟲,到去年為止都是有效的,但是今年失敗了,這個蟲未必會對棉花產生的殺蟲劑有抵抗性,這種蟲都是在穀類上繁殖,且去年有較多的穀類生長在棉花區,所以很有可能這種蟲戰勝棉花
:(我知道翻的很好笑,自己都看不下去,但是我不太懂這個結論和 B友什麼關係呢?謝謝各位看完這麼落落長的一題~~