[求助]OG12-114

114. Guidebook writer: I have visited hotels throughout thecountry and have noticed that in those built before1930 the quality of the original carpentry work isgenerally superior to that in hotels built afterward.Clearly carpenters working on hotels before 1930typically worked with more skill, care, and effort thancarpenters who have worked on hotels builtsubsequently.
Which of the following, if true, most seriously weakensthe guidebook writer’s argument?
(A) The quality of original carpentry in hotels isgenerally far superior to the quality of originalcarpentry in other structures, such as housesand stores.
(B) Hotels built since 1930 can generallyaccommodate more guests than those builtbefore 1930.
(C) The materials available to carpenters workingbefore 1930 were not signifi cantly different inquality from the materials available tocarpenters working after 1930.
(D) The better the quality of original carpentry in abuilding, the less likely that building is to fall intodisuse and be demolished.
(E) The average length of apprenticeship forcarpenters has declined signifi cantly since 1930.

这是道新题 请大家看看 帮忙解释一下为什么选D 谢谢大家了

writer：在1930年之后修建hotel的质量比1930年之前的好，所以1930年前的木工要比之后的好

（A）无关项 far superior to the quality of originalcarpentry in other structures, such as housesand stores.

（B）无关项：没有讨论容量

（C）否定题目项，如果成立则和题目的finding矛盾

（D）只有质量好的才能保存至今，题目的发现其实是在哪1930年前质量很好的房子和之后房子的平均水品去比较，论断是建立在不对等的调查数据上的比较，结论自然也就是不可靠的。削弱 ---correct

（E）加强项，说明1930年后的木工没有得到很好的训练和学习

哈 明白啦 谢谢