[求助]prep1-63

crystalgan

63.   (34945-!-item-!-188;#058&007591)

 

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?

 

(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.

 

答案为B

请问E为什么错？？选项E陈述了other factors,不是正好weaken conclusion吗？？