prep-101 各位帮忙看一下~~

tclzcja

Two computer companies, Garnet and Renco, each pay Salcor to provide health insurance for their employees.  Because early treatment of high cholesterol can prevent strokes that would otherwise occur several years later, Salcor encourages Garnet employees to have their cholesterol levels tested and to obtain early treatment for high cholesterol.  Renco employees generally remain with Renco only for a few years, however.  Therefore, Salcor lacks any financial incentive to provide similar encouragement to Renco employees.

Which of the following, if true, most seriously weakens the argument?
A. Early treatment of high cholesterol does not eliminate the possibility of a stroke later in life.
B. People often obtain early treatment for high cholesterol on their own.
C. Garnet hires a significant number of former employees of Renco.
D. Renco and Garnet have approximately the same number of employees.
E. Renco employees are not, on average, significantly younger than Garnet employees.
这个题曾经以填空题得形式出现过，答案是A 现在以普通的方式出现答案是C，很不解

clairesslc

楼主 以填空的方式出现应该选Ａ
因为，填空解释的是 为什么Salcor没有足够的理由让R的员工早治疗，因为A. Early treatment of high cholesterol does not eliminate the possibility of a stroke later in life.
早治疗不会减少以后中风的可能性，又因为题目说的Ｒ的员工都是短期的，也就是说这些员工离开公司以后，很有可能还是会得中风，他们还得自己支付
中风的医药费，所以Salcor

但是如果问削弱的话，应该选Ｃ　没错
题目说Salcor鼓励Ｇ的员工早治疗，却 lacks any financial incentive 去鼓励Ｒ的员工，但是Ｃ选项却说Ｇ的员工都是Ｒ以前的员工，所以应该是Salcor鼓励Ｒ的员工早治疗， lacks any financial incentive 去鼓励Ｇ的员工，因为Ｇ的员工来自Ｒ，而Ｒ已经在几年前为他们支付过保险了。　所以Ｃ削弱了两个方面。

tclzcja

谢谢呀~~我还是有点不明白此题的因果关系推理，我理解的是因为G公司的员工在公司呆不了几年，给G创不了多少价值（这是它的financial incentive），所以S鼓励G员工没必要。
削弱是不是因为financial incentive,而是因为G的员工来自于R。 属于找到其他的原因来削弱结论，这样理解可以吗？

tclzcja

而填空题与这道题的本质区别是 结论不一样，填空题 提供足够的理由，属于加强。加强G没有提供早期的医疗救治。而这道题是削弱。这样理解可以吗？

clairesslc

恩 对 填空题一般是解释原因也可以是加强

但是那个削弱，我觉得不是他因 而是削弱题目中的没有financial incentive

原文说因为R的员工都留不长，S就没有动机提建议。C选项是说有很多R的员工会被G hire，那些员工在 Renco 时如果不做胆固醇的检验，进到 Garnet 时，可能就病发中风，Salcor 就要花很多钱去治疗这些员工。所以如果在 Renco 时就已经做检验，那很可能预防中风，那就可以省钱

tclzcja

恩也，明白了，结论是缺少financial incentive.所以削弱就是它有

financial incentive.即可以节约医药费。