首页
登录
职称英语
Electrical engineers have repeatedly demonstrated that the best solid-state ampl
Electrical engineers have repeatedly demonstrated that the best solid-state ampl
游客
2025-02-26
37
管理
问题
Electrical engineers have repeatedly demonstrated that the best solid-state amplifiers are indistinguishable from the best vacuum-tube amplifiers with respect to the characteristics commonly measured in evaluating the quality of an amplifier’s musical reproduction. Therefore, those music lovers who insist that recorded music sounds better when played with the best vacuum-tube amplifier than when played with the best solid-state amplifier must be imagining the difference in quality that they claim to bear. Which one of the following, if true, most seriously weakens the argument?
选项
A、Many people cannot tell from listening to it whether a recording is being played with a very good solid-state amplifier or a very good vacuum-tube amplifier.
B、The range of variation with respect to the quality of musical reproduction is greater for vacuum-tube amplifiers than for solid-state amplifiers.
C、Some of the characteristics that are important in determining how music sounds to a listener cannot be measured .
D、Solid-state amplifiers are more compact, use less power, and generate less heat than vacuum-tube amplifiers that produce a comparable volume of sound.
E、Some vacuum-tube amplifiers are clearly superior to some solid-state amplifiers with respect to the characteristics commonly measured in the laboratory to evaluate the quality of an amplifier’s musical reproduction.
答案
C
解析
本题根据两种扩音机在音乐再现方面的性能一样,做出了音乐爱好者们认为的性能差异是经他们主观臆测而得出来的结论。要削弱结论,只要削弱前提即可。选项(C)通过找他因的方法对本题的辩论的前提进行了削弱,因此(C)为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3973184.html
相关试题推荐
ScienceAcademystudy:Ithasbeendemonstratedthatwithnaturalmethods,some
Althoughonelinkinthechainwasdemonstratedtobeweak,butnotsufficiently
ResearchersatCornellUniversityhavedemonstratedthathomingpigeonscansens
Ascontrastedwiththehoneybee,theyellowjacketcanstingrepeatedlywithout
ThefinancialcrashofOctober1987demonstratedthattheworld’scapitalmarket
Inaboxof10electricalparts,2aredefective.(a)Ifyouchooseonepartatr
Inaboxof10electricalparts,2aredefective.(a)Ifyouchooseonepartatr
Theplan,whichtheengineerssaidwouldsavetheaquiferbyreducingpumpingto
Althoughstrangerscomplimentthecomedianonherworkrepeatedly,almost______,
Theengineersheardtheclaimsaboutthenewsoftwarewith(i)______,butthede
随机试题
[originaltext]Whenthewords"withoutrecourse"orwordswithsimilarmeani
Whatdayoftheweekisit?[br][originaltext]M:Susan,doyouknowwhenProfe
[originaltext](12)Youngwomenarelosingfaithintheuniversitysystemwit
作业成本管理的过程观,企业可以利用这些信息优化价值链,改善经营过程,最终实现()
革兰阳性菌感染者对青霉素过敏者可选用()A.氨苄西林 B.苯唑西林
房地产市场营销的基本特征有()。A:受区域影响很大 B:具有固定性 C:消
下边四个图形中,只有一个是由上边的四个图形拼合(只能通过上、下、左、右平移)而成
能源存货量核算应遵循的原则包括( )。A.时点性原则 B.实际数量原则 C
美国心理学家波斯纳提出一个公式:教师成长=经验+反思。这表明教师应当( )A.
证券公司通过参与企业兼并与收购,可以实现( )。A.超额利润 B.
最新回复
(
0
)