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题库 / OG12-CR-81
When demand for a factory's products is high, more money is spent at the factory for safety precautions and machinery maintenance than when demand is low. Thus the average number of on-the-job accidents per employee each month should be lower during periods when demand is high than when demand is low and less money is available for safety precautions and machinery maintenance.
Which of the following, if true about a factory when demand for its products is high, casts the most serious doubt on the conclusion drawn above?
Its employees ask for higher wages than they do at other times.
Its management hires new workers but lacks the time to train them properly.
Its employees are less likely to lose their jobs than they are at other times.
Its management sponsors a monthly safety award for each division in the factory.
Its old machinery is replaced with modern, automated models.
原文说的是当需求高的时候用于预防和设备维护的钱会多一些，所以需求高的时候事故率会低一些，最后一点读的有点乱，反正谈的就是需求量高低和事故率以及预防的话费问题之间的关系，我们看看选项，A说员工在这个时候要的工资更高，没提，杀。B雇了一些新人但是没有时间来训练他们，和预防及事故率相关，留着。C说员工更有可能丢工作，没提，杀。D说管理层有安全奖，扯得太远了，杀。E说用新机器替代了老机器，扯得还是比较远，选B
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E说新机器替代旧机器，但是不知道新机器需要花多少钱，有可能还花的更多，所以不能说明剩下的钱会变多。
B雇了没训练好的新员工，所以accidents per employee不会因为花钱多了就lower， 削弱结论
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