The more frequently employees take time to exercise during working hours each week, the fewer sick days they take. Even employees who exercise only once a week during working hours take less sick time than those who do not exercise. Therefore, if companies started fitness programs, the absentee rate in those companies would decrease significantly.
Which of the following, if true, most seriously weakens the argument above?
Employees who exercise during working hours occasionally fall asleep for short periods of time after they exercise.
Employees who are frequently absent are the least likely to cooperate with or to join a corporate fitness program.
Employees who exercise only once a week in their company's fitness program usually also exercise after work.
Employees who exercise in their company's fitness program use their working time no more productively than those who do not exercise.
Employees who exercise during working hours take slightly longer lunch breaks than employees who do not exercise.
① weaken
② exc↑→sick↓;G:↓absent% in company P: +fitness program
A:运动后睡觉和上班缺勤无关
B:缺勤率最高的属于最不愿意参与和配合健身项目的那群人,说明即便实施了这个项目的成功率也不会高;可以削弱,保留
C:参加运动的频率和本题无关
D:只考虑缺勤率的问题,生产效率无关
E:健身的人吃午饭的时间更长,和缺勤无关
综上,B
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