第一种文章(前提结论结构): A(事实)-前提结论->B(推测)
第二种文章(因果结构): A(事实)<-因果-B(推测)
第三种文章(变态结构): A(事实)-前提结论->B(推测)表面为第一种
实为的二种即 A(事实)<-因果-B(推测)
那位NN 能帮解释如何分析下面这题呢? 哪句是A, 哪句是B? 是为什么不是前提结构呢?如果有更详细的介绍就好了。
1. Artificial seaweed made of plastic has been placed on a section of coast in order to reverse beach erosion. The inventor of the seaweed has concluded that the recent buildup of sand on that section of coast proves that the artificial seaweed reverses beach erosion.
Which of the following, if true, world most seriously weaken the inventor’s conclusion?
(A) The amount of recent sand buildup on that section of coast was less than had been predicted on
the basis of the results obtained in controlled experiments.
(B) Because artificial seaweed would be buried eventually by additional sand deposits on the coast,
more artificial seaweed would need to be put in place every four years.
(C) Artificial seaweed of another material which had been previously developed by the inventor
failed to add sand to coastline in past trials.
(D) The amount of recent sand buildup on that section of coast is the same as the amount of recent
sand buildup on otherwise very similar sections of coast without artificial seaweed.
(E) The amount of recent sand buildup on that section of coast, although considerable, is not yet
enough to replace the amount lost during storms on that section of coast in the last twenty years.
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