GAMT&LSAT CR ——TEST C—— 第14题

1988529

Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.

In which of the following is the reasoning most similar to that of Dr. A?

(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.（C）
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.

我觉得原题的逻辑是选择“我认为一个事物是怎样那就是怎样，完全主观判断”，但是正确选项C好像并不是这种叙述方式，而是给出了一个合理的解释，即“因为 effective 所以perform best ”

不知哪位大侠可以帮忙讲解一下

1988529

顶一下

gennytony

Dr.A的回答属于循环论证，即用结论作为论据推导出相同结论。C答案也是如此，结论是“ Wingzz tennisballs perform best”，然后又用此结论“ they are farmore effective than any other tennis balls”，即为“they are the most effective among the tennis balls” 你推出之前“perform best”的结论。