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. 157. 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. 157. The data used to support the conclusion come from the companies’ own records. Since, however, choice B indicates that, as compared with Company O, Company P tends to overstate the number of job-related accidents, choice B weakens the conclusion drawn and is the best answer. Choice A does not weaken the conclusion, but is simply a consequence that would be expected given the data. The relevance of employees’ sicknesses (choice C) cannot be assessed without information about the links, if any, between sickness and job-related accidents. Choices D and E both give reasons for predicting a smaller likelihood that any arbitrary employee of Company O will have a job-related accidents, and thus support the conclusion. 关于d 和e 的解释也让我不太理解文中结论说o比p的job-relatited accident 少，d e 中 我觉得只能分析出伤得人少，而不是事故少？ 请指教！！谢谢 | 
