标题: 请教 大全-TEST III-12,13，高手请进来 [打印本页] 作者: tytjazzmate 时间: 2011-3-10 15:14 标题: 请教 大全-TEST III-12,13，高手请进来 Record companies defend their substitution of laser-read compact discs (CD’s) for the much less expensive traditional long-playing vinyl records in their catalogs by claiming that the audio market is ruled by consumer demand for ever-improved sound reproduction rather than by record manufacturers’ profit-motivated marketing decisions. But this claim cannot be true, because if it were true, then digital audiotape, which produces even better sound than CD’s, would be commercially available from these same record companies, but it is not.
12.Which of the following, if true, best explains how the record companies’ claim about the nature of the audio reproduction market could be true and digital audiotape nevertheless be unavailable for the commercial market?
(A) Most consumers prefer audiotape to long-playing records or CD’s because of the tape’s durability and compactness.
(B) Prototypes of digital audiotape have been used to make master tapes of some performances in recording studios.
(C) The manufacturing technology that underlies the commercial production of CD’s requires equipment very similar to that needed for commercial production of digital audiotape.
(D) Record companies have not yet solved several quality-control problems that have beset attempts to produce digital audiotape in commercial quantities. (E) CD’s are more expensive than long-playing vinyl records by about the same ratio as digital audiotape cassettes would be more expensive than conventional cassettes.
13.Which of the following, if true, would most strengthen the argument against the record companies’ claim?
(A) When CD’s were first introduced in the audio-reproduction market, prices were high and selection was poor.
(B) Record companies are reluctant to attempt commercial production of digital audiotape until profits from the sales of CD’s have enabled them to recover their investments in compact-disc manufacturing technology.
(C) Some CD’s have been so much in demand that consumers have experienced long delays in obtaining copies.
(D) Because CD’s work according to principles very different from those that govern conventional recordings, commercial production of CD’s requires new kinds of manufacturing technology. (E) Any valid comparison of CD audio reproductions to digital audiotape reproductions must be based on identical performances played back on the highest quality disc or tape player. 作者: tytjazzmate 时间: 2011-3-11 16:33 标题: the answer is The answer for 12 is d, 13 is B. But why? Is there someone can help? Many thanks.作者: liwen0625 时间: 2013-9-5 20:01
注意文章说市场是有消费者决定，消费者的标准就是ever-improved sound reproduction，12题C选项刚好就解释了为什么消费者不买DA，因为DA这个产品本身有缺陷还需improved。13题要加强argument,就是要找市场是因为公司看重利润决定产品而不是有消费者决定，那么B选项很好的阐释了。