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标题: 牛人给俺解释一下这道题目吧 [打印本页]

作者: jdxf 时间: 2007-5-1 02:43
标题: 牛人给俺解释一下这道题目吧

40. GWD-23-Q14

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?

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

作者: pangpangshin 时间: 2007-5-1 13:21

我不是N人,说下我的想法,批判着看吧

last year more corn than usual was planted throughout cotton-growing regions(即棉花种植区的BO增多)=>the cotton is simply being overwhelmed by corn-bred bollworms.

我自己的感觉是评价题大多都是评价原因B是否对A产生作用,正确选项大致为

1.非B是否对A产生作用 2.B是否对A产生作用

这个B选项属于2.

PS:原文这句:This year the plantings are being seriously damaged by bollworms.我认为和选项里

plantings of cotton that does not produce the insecticide 对应,不知道对不对

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