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LSAT-10-2-12
12. Purebred dogs are prone to genetically determined abnormalities. Although such abnormalities often can be corrected by surgery, the cost can reach several thousand dollars. Since nonpurebred dogs rarely suffer from geneticallly determined abnormalities, portential dog owners who want to reduce the risk of incurring costly medical bills for their pets would be well advised to choose nonpurebred dogs.
Which one of the following, if true, most seriously weakens the argument?
(A) Most genetically determined abnormalities in dogs do not seriously affect a
dog's general well-being.
(B) All dogs, whether purebred or nonpurebred, are subject to the same comon
nongenetically determined diseases.
(C)  urebred dogs tend to have shorter natural life spans than do nonpurebred dogs.
(D) The pruchase price of nonpurebred dogs tends to be lower than the purchase
price of purebred dogs.
(E) A dog that does not have geneticallly dtermined abnormalities may nevertheless
have offspring with such abnormalities.
Why the answer is (A)? does this mean that the abnormalities in purebred are not serious so that people won't bother to cure them (save money)?
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发表于 2004-2-11 02:13:00
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