[求助]大全-III-12
Questions 12-13 are based on the following.
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.
疑惑之处:What on earth does record companies defend? substitution of laser-read compact discs or laser-read compact discs?
我觉得substitution of A的意思就是 A的替代品;但是从下文看来,这个substitution似乎指得就是CD
请xdjm们帮忙翻译一下第一句话吧。谢啦
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