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题库 / Prep2007E1-SC-91
Although they are more temperamental and far more expensive than transistor-driven amplifiers, many audiophiles and audio professionals prefer the warmer, richer tones produced by vacuum-tube-driven amplifiers.
many audiophiles and audio professionals prefer the warmer, richer tones produced by vacuum-tube-driven amplifiers
many audiophiles and audio professionals think the warmer, richer tones produced by vacuum-tube-driven amplifiers make them preferable
warmer, richer tones are produced by vacuum-tube-driven amplifiers and they are thus preferred by many audiophiles and audio professionals
vacuum-tube-driven amplifiers are preferred because they produce warmer, richer tones by many audiophiles and audio professionals
vacuum-tube-driven amplifiers are preferred by many audiophiles and audio professionals because these amplifiers produce warmer, richer tones
although引导让步状语从句，不要求平行
abc选项中从句中的they优先指代了audiophiles and audio professionals和warmer, richer tones，导致逻辑❌
d选项中prefer和by之间相隔太远，造成修饰不当，同时会造成歧义“produce xxx by”
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