gwd-4-14 我觉得答案是 B

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?

1. 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.
   
2. Hotels built since 1930 can generally accommodate more guests than those built before 1930.
   
3. The
   materials available to carpenters working before 1930 were not
   significantly different in quality from the materials available to
   carpenters working after 1930.
   
4. The
   better the quality of original carpentry in a building, the less likely
   that building is to fall into disuse and be demolished.
   
5. The average length of apprenticeship for carpenters has declined significantly since 1930.

这题在GWD连接置顶帖里有3个帖子讨论过。楼主能不能考虑把这个帖子帖在那3个任何一个后面？这样将来方便后人查询和讨论。

谢谢合作。

这题在GWD连接置顶帖里有3个帖子讨论过。楼主能不能考虑把这个帖子帖在那3个任何一个后面？这样将来方便后人查询和讨论。

谢谢合作。