OG-10 157 怎么都想不明白···麻烦帮帮忙··谢谢啦·

dior_mickey

157. Companies O and P each have the same number of employees who work the same number of hours per week. According to records maintained by each company, the employees of Company O had fewer job-related accidents last year than did the employees of Company P. Therefore, employees of Company O are less likely to have job-related accidents than are employees of Company P.

Which of the following, if true, would most weaken the conclusion above?
(A) The employees of Company P lost more time at work due to job-related accidents than did the employees of Company O.
(B) Company P considered more types of accidents to be job-related than did Company O.
(C) The employees of Company P were sick more often than were the employees of Company O.
(D) Several employees of Company O each had more than one job-related accident.
(E) The majority of job-related accidents at Company O involved a single machine.

dior_mickey

我不明白为什么B对结论有削弱作用
怎么想都觉得很怪····
D到是有点削弱的意思 不过用了several
麻烦谁帮我解答下啦····
谢谢~~！！！

honeybee316

提干说：前提：O P2个公司 有相同的员工 员工的工作时间也一样
证据： 在去年，O公司的员工比P公司的员工有更少的job-related accidents
结论是：O公司的员工比P公司的员工更不爱有job-related accidents
问哪个能削弱结论？
B ：Company P considered more types of accidents to be job-related than did Company O.
意思是说 P公司所认为的job-related accidents 包含更多种类的ACCIDENTS
 公司可能包含ABCD   O公司可能只有A
P公司定义的job-related accidents 与O公司定义的不一样
所以结论O公司的员工比P公司的员工更不爱有job-related accidents 被削弱了 因为2种公司的job-related accidents 不一样 不具有可比性

而D选项说一些O公司的员工每一个都有一件以上job-related accidents
这个并不能削弱 因为结论说的是2个公司的对比
D选项读起来像是说明O公司员工有很多的job-related accidents
但是P公司的员工每人可以有4，5件  5，6件 都可以 没有给出2者的对比 单单说O公司员工job-related accidents 的数量并不能说明什么
所以D选项无法削弱
个人看法~

dior_mickey

哦！！！
明白了！！！恩恩恩！！
谢谢啦~~！！！！