单选题 Jane: According to an article in this newsmagazine, children hand-eye coordination suffers when they spend a great amount of time watching television. Therefore, we must restrict the amount of time Jacqueline and Mildred are allowed to watch television.
Alan: Rubbish! The article says that only children under three are affected in that way. Jacqueline is ten and Mildred is eight. Therefore, we need not restrict their television viewing.
Alan's argument against Jane's conclusion makes which one of the following errors in reasoning?

A、 It relies on the same source that Jane cited in support of her conclusion.
B、 It confuses undermining an argument in support of a given conclusion with showing that the conclusion itself is false.
C、 It does not address the main point of Jane's argument and focuses instead on a side issue.
D、 It makes an irrelevant appeal to an authority.
E、 (E) It fails to distinguish the consequences of a certain practice from the causes of the practice.

【正确答案】 B

【答案解析】[解析] Jane的结论的前提是当孩子们花大量的时间看电视时，他们的手和眼的协调性会变差，而Alan则认为只有三岁以下的孩子才会受到那样的影响，于是他就否定了Jane的结论。本题读题重点是第二个人的第一句话“Rubbish”。注意：某人论据不真，但结论不一定不真。Alan反对的Jane的论据，只能weaken Jane的结论，而不能必然证明Jane结论为错误的，所以(B)选项是正确的。(A)、(C)、(D)和(E)都不是Alan所犯的推理错误。