400-1816-180
本題由lindy提供
Early in the twentieth century, Lake Konfa became very polluted.
The argument depends on assuming which of the following?
A. Apart from development related to the pipeline, there will be no new industrial development around the lake that will create renewed pollution in its waters.
B. There is no reason to believe that the leak-preventing technology would be ineffective when installed in the pipeline in Lake Konfa.
C. The bottom of the lake does not contain toxic remnants of earlier pollution that will be stirred into the water by pipeline construction.
D. Damage to the lake’s fish populations would be the only harm that a leak of oil from the pipeline would cause.
E. The species of fish that are present in Lake Konfa now are the same as those that were in the lake before it was affected by pollution.
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早期K湖?
問結論前提
題目中的fear是指pipeline的建造會引起revived pollution.結論是說假設technology effective,那么fears是groundless.即只要installation of the new technology能effective，那么就不會有revived pollution，fears就是groundless.
A 除了管道之外，湖周圍沒有其他的工業(yè)可以產(chǎn)生污染。
討論pipeline之外的污染源無意義，只要設備有效，管有沒有其他的污染都無關
B 沒有理由相信，這個管道設施是無效的。削弱結論
C 湖底沒有包含會被管道工程攪起來的早期污染物。
D 安裝管道會引起的唯一問題就是對魚類數(shù)量的破壞。削弱結論了
E 現(xiàn)在的與跟之前收到污染的魚都是一樣的。無關魚的種類，排除
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