og-2017-658 求大佬解释

selenaslay

Guidebook writer: I have visited hotels throughout the country and have noticed that in those built before 1930 the quality of the original carpentry work is generally superior to that in hotels built afterward. Clearly carpenters working on hotels before 1930 typically worked with more skill, care, and effort than carpenters who have worked on hotels built subsequently.

Which of the following, if true, most seriously weakens the guidebook writer’s argument?


(A) The quality of original carpentry in hotels is generally far superior to the quality of original carpentry in other structures, such as houses and stores.

(B) Hotels built since 1930 can generally accommodate more guests than those built before 1930.

(C) The materials available to carpenters working before 1930 were not significantly different in quality from the materials available to carpenters working after 1930.

(D) The better the quality of original carpentry in a building, the less likely that building is to fall into disuse and be demolished.

(E) The average length of apprenticeship for carpenters has declined significantly since 1930.


答案是D
看了论坛里的一些解释，说是因为如果留下来的都是好的房子的话，样本不具有代表性，因为1930年前留下的都是carpentry好的旅馆，不能拿好的和之后的比。
但是如果选D的话也证明1930年之后的也是被筛选过的留下来的好的房子，我觉得都是在把好的进行比较啊？不存在拿好的样本和不好的样本比较的问题吧？求解答

selenaslay

我顶

selenaslay

Carol凡凡 发表于 2020-8-28 13:10
writer认为1930年以前的hotel质量比1930年以后的l更好，是基于他见过的那些1930年以前的hotel。
所以攻击 ...

谢谢！

selenaslay

mandy1991 发表于 2020-9-2 10:46
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太感谢了！！