新prep1-110 多谢！！！！！

orchidq

110. (30658-!-item-!-188;#058&005491)     (GWD 7-Q17)

Ofpatients over 65 years old who survived coronary bypass surgery—a procedurewidely prescribed for people with heart disease—only 75 percent benefited fromthe surgery.  Thus it appears that forone in four such patients, the doctors who advised them to undergo thissurgery, with its attendant risks and expense, were more interested in anopportunity to practice their skills and in their fee than in helping thepatient.
Whichof the following, if true, most seriously undermines the argument?
A.Many of the patients who receive coronary bypass surgery are less than 55 yearsold.
B.Possible benefits of coronary bypass surgery include both relief from troublingsymptoms and prolongation of life.
C.Most of the patients in the survey decided to undergo coronary bypass surgerybecause they were advised that the surgery would reduce their risk of futureheart attacks.
D.The patients over 65 years old who did not benefit from the coronary bypasssurgery were as fully informed as those who did benefit from the surgery as tothe risks of the surgery prior to undergoing it.
E.The patients who underwent coronary bypass surgery but who did not benefit fromit were medically indistinguishable, prior to their surgery, from the patientswho did benefit.


B选项为啥不成呢？是因为没E削弱得那么强烈么？？？

xiaomimi

To undermine this argument, you need focus on the one of four(the other 25%) who does not benefit from this surgery. If there are other reasons that cause the mission unaccomplished rather than those have been listed by the author then it serves the purpose.

B only focus on the 75% so it does not undermine anything but rather strength one point in this argument.

orchidq

好像有点明白了，其实B说的也是基于E的假设，是这个意思么？

ken178

有没有其它更详细的解释呢？昨天模考这题做错了。我选了D。
明白答案E。但是D和E如何比较那个好呢？考试没有那么多时间想啊。

ken178

up

jessiecg

UP!
我也选的D

WANGBOWEI

要削弱，就得证明不是医生的不负责任。
从原文可以推断，无论是25% who don't benefit,还是75% who benefit，手术前都是fully informed by doctor.
所以，D没有削弱结论。只有E，能说明不是医生不负责任。

坤kun

还是不明白D为什么错？D也可以说明不是医生不负责任啊……如果医生只是为了赚钱，他完全可以不给部分病人说清楚这个手术可能的风险，然后忽悠他们去做这样一个手术。但是D说医生都通知了可能的风险，那不刚好说明不是医生不负责任吗？