Personnel officer: The exorbitant cost of our health-insurance benefits reflects the high dollar amount of medical expenses incurred by our employees. Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit. Therefore, since we must reduce our health-insurance costs, we should offer a rigorous fitness program of jogging and weight lifting to all employees, and require employees who are out of shape to participate.
The conclusion reached by the personnel officer depends on which of the following assumptions
答案為C 計畫不會造成更多醫療支出
D The fitness program would serve more employees who are out of shape than it would employees who are fit.
E The employees who participate in the fitness program would be away from work because of illness less than
would the employees who do not participate. 無關
但是D為什麼不合理ㄋ? 都沒有人討論D 有請網上NN解惑
對D的思路是
如果瘦身計劃服務更多的胖子員工 就符合題目的結論ㄚ(一開始題目就說醫療支出大部分是胖的人造成的)
那瘦身計劃越多胖子員工 公司就能省下更多錢ㄚ
有NN想出了嗎
B是典型的无关比较，题目里说的是“增加健身”VS“降低医疗费用”之间的关系，
B根本就没有涉及到这两者之间的关系，只是比较“被要求参加的员工”VS“不被要求参加的员工”，无关；
而且B违反了原文提供的信息“ Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit. ”（out of shape的员工的医疗费是大于其他fit的员工的）。
题目里说的是“增加健身”VS“降低医疗费用”之间的因果关系，
D 就没有涉及到这两者之间的关系，只是比较“out of shape员工”VS“fit员工”，无关；
我对D的看法：
其实就是类似 比较 新、旧两种计划的 投入产出比，
现在要用新计划来替代旧计划，说新计划会省钱，
那么，新计划的成本是什么呢：
购买成本+使用过程中产生的成本；
使用过程中产生的成本就是这里的“使用中产生（剧烈运动导致）的医疗费用”，如果这个不排除，那使用成本太高，用这个健身设施也太不合算了。
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