陈向东逻辑题，弄不明白了请nn们帮忙解答一下

奇奇大小姐 · 发表于 2013-1-3 08:45:32

21.government bans on the dumping of sludge anywhere in the ocean are based on
the belief that the spread of sludge by ocean currents poses a danger to
people.since it is not clear that sludge dumped on the ocean bottom, far from
coasts,would endanger people, the bans should be revised to apply only to
coastal waters
each of the following, if true, supports the conclusion that
the bans on ocean dumping should be revised except
B) Many locations on
the ocean bottom far from coasts are geologically stable, and unlikely to be
disrupted by earthquakes or volcanic eruptions.
D)dumping large amounts of
sludge would have an unknown effect on organisms that live on the ocean
bottom.
我想问一下，这个D选项，是weaken 了这个推理么？还是这个选项既不支持也不反对？请NN帮忙给梳理一下思路，谢谢啦

guotonghao123 · 发表于 2013-1-3 10:47:30

我个人认为，D项的话，属于引入无关信息，因为文中讨论的是对coast people的影响，并没有提及bottom organism，同时由于文中以及选项也没有建立bottom organism和people的联系，所以该选项没有支持也没有反对。

奇奇大小姐 · 发表于 2013-1-8 15:17:57

嗯，谢谢，这下明白了

陈向东逻辑题，弄不明白了请nn们帮忙解答一下

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