GWD5-17 请牛人帮忙～

calina

GWD5-Q17:

Of patients over 65 years old whosurvived coronary bypass surgery—a procedure widely prescribed for people withheart disease—only 75 percent benefited from the surgery.  Thus it appears that for one in four suchpatients, 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.

Which of the following, if true, mostseriously undermines the argument?

A.    Many of the patients who receivecoronary bypass surgery are less than 55 years old.

B.     Possible benefits of coronary bypasssurgery include both relief from troubling symptoms and prolongation of life.

C.     Most of the patients in the surveydecided to undergo coronary bypass surgery because they were advised that thesurgery would reduce their risk of future heart attacks.

D.    The patients over 65 years old who didnot benefit from the coronary bypass surgery were as fully informed as thosewho did benefit from the surgery as to the risks of the surgery prior toundergoing it.

E.     The patients whounderwent coronary bypass surgery but who did not benefit from it weremedically indistinguishable, prior to their surgery, from the patients who didbenefit.

麻烦告诉我一下此题的思路在那里？？有点糊涂了～谢谢！

bikepack

明白了，句子读起来有点吃力。

sdcar2010

The argument says that the doctor gives wrong information to one-fourth of the patients because the doctors wants to earn money from these patient even though the surgery would not help them.

E says that the doctor cannot tell whether a patient will benefit from the surgery BEFORE operating on them. Thus they not motivated by money when telling those one-fourth patients that they need a surgery.