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bigmouse · 发表于 2003-9-3 17:32:00

9. Advertisement: Clark brand-name parts are made for cars manufactured in this country. They satisfy al of our government automotive test-the toughest such tests in the world. With foreign-made parts, you never know which might be reliable and which are cheap look-alikes that are poorly constructed and liable to cost you hundreds of dollars in repairs. Therefore, be smart and insist on brand-name parts by Clark for your car.
The argument requires the assumption that
(A) Clark parts are available only in this country
(B) foreign-made parts are not suitable for cars manufactured in this country
(C) no foreign-made parts satisfy our government standards
(D) parts that satisfy our government standards are not as poorly constructed as cheap foreign-made parts
(E) if parts are made for cars manufactured in our country, they are not poorly constructed
answer

C为什么不对，虽然我也选了D，但我觉得C也是一个答案。请NN们指点一下？

mindfree · 发表于 2003-9-4 09:38:00

Explained before. C is not a answer. Not C is: some foreign-made parts meet G requirements. The conclusion still holds, because the premises is that you will not be able to dinstinguise good foreign parts from bad ones, as said in "you never know which might be reliable and which are cheap look-alikes that are poorly constructed ..."

bigmouse · 发表于 2003-9-4 10:48:00

oh！！thanks mindfree!你这么一说，豁然开朗！！明白了！还是我的提干没读懂！

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