请教GWD3 Q8 逻辑题

lesery

Which of the following most logically completes the passage?

Garnet and RenCo each provide health care for their employees.  Garnet pays for both testing of its employees’ cholesterol levels and treatment of high cholesterol.  This policy saves Garnet money, since high cholesterol left untreated for many years leads to conditions that require very expensive treatment.  However, RenCo dose not have the same financial incentive to adopt such a policy, because ______.

A.     early treatment of high cholesterol dose not entirely eliminate the possibility of a stroke later in life

B.     the mass media regularly feature stories encouraging people to maintain diets that are low in cholesterol

C.     RenCo has significantly more employees than Garnet has

D.     RenCo’s employees are unlikely to have higher cholesterol levels than Garnet’s employees

E.      the average length of time an employee stays with RenCo is less than it is with Garnet

请问答案为什么是E？我想不透。

wycg

原文说高胆固醇时间一长就能得病. E说的是R的工人平均代的时间短. 暗试R不用查胆固醇.

大概是这意思

lesery

谢谢。那如果工人去公司前已经有高胆固醇了，那跟呆在公司多久没关系啊！

wycg

以下是引用lesery在2006-2-11 20:13:00的发言：
谢谢。那如果工人去公司前已经有高胆固醇了，那跟呆在公司多久没关系啊！

建仪LZ看看GWD说的话. 个人认为他说的很有道理.

http://forum.chasedream.com/dispbbs.asp?boardID=34&ID=123722&page=3