作者：英吉
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.
(A) many audiophiles and audio professionals prefer the warmer, richer tones produced by vacuum-tube-driven amplifiers
(B) many audiophiles and audio professionals think the warmer, richer tones produced by vacuum-tube-driven amplifiers make them preferable
(C) warmer, richer tones are produced by vacuum-tube-driven amplifiers and they are thus preferred by many audiophiles and audio professionals
(D) vacuum-tube-driven amplifiers are preferred because they produce warmer, richer tones by many audiophiles and audio professionals
(E) vacuum-tube-driven amplifiers are preferred by many audiophiles and audio professionals because these amplifiers produce warmer, richer tones
原文意思：虽然这个东西是临时的并且比另外一个amplifier贵，但是这个东西由于能生成更好的tones而收到一些人的喜爱。
题目分析：由于前面说they，我就希望逗号后面马上告诉我they是谁。they应该是另外一个amplifier，因为说they指的这个东西比 transistor-driven amplifiers更贵，根据这点我们可以把A，B，C干掉。D和E进行比较，D by many找个介词短语所放的位置就会让我觉得这个by引导的介词短语是修饰tones的，不过根据语义我们很容易判断出这个介词短语不是修饰tones的，而是这个amplifiers被很多专业人士喜欢，应该修饰prefer的，选E。
