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  3. Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plan

Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plan

admin2014-10-21  41
问题 Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plants. Company spokesperson: The refinery is not to blame, since our study shows that the damage is due to insects and fungi. Which of the following, if true, most seriously weakens the conclusion drawn by the company spokesperson?
选项 A、The study did not measure the quantity of pollutants emitted into the surrounding air by the aluminum refinery.
B、The neighboring landholders have made no change in the way they take care of their plants.
C、Air pollution from the refinery has changed the chemical balance in the plants’ environment, allowing the harmful insects and fungi to thrive.
D、Pollutants that are invisible and odorless are emitted into the surrounding air by the refinery.
E、The various species of insects and fungi mentioned in the study have been occasionally found in the locality during the past hundred years.
答案C
解析 本题虽属于“二人对话”型，但其问题目的是让我们反驳第二个人即公司发言人的观点，我们可以看到公司发言人的推理属于“A’，not A→B”(A=昆虫与细菌；A’=炼铝厂空气污染；B=杀死作物)反对思路要么为就是A导致B，要么为A导致A’。(C)指出A导致A’，从而起到了反对作用，所以(C)正确。
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