og 157求教

junjun424

Questions 156-157 are based on the following.

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.

答案是B没弄懂，请指点

lismiles

我的理解：

o和P公司有相同的工人并且每周工作时间相同，但是去年O公司的工作事故量少于P公司，结论：O公司的人不太可能发生工作事故。

应用它因削弱发生的事故量和发生事故的可能性之间直接推理。

它因削弱：b。p公司的工作事故的种类比o公司多。所以工作事故多。