Advertisement: For sinus pain, three out of four hospitals give their patients Novex. So when you want the most effective painkiller for sinus pain, Novex is the one to choose.

Which of the following, if true, most seriously undermines the advertisement’s argument?

(A) Some competing brands of painkillers are intended to reduce other kinds of pain in addition to sinus pain.

(B) Many hospitals that do not usually use Novex will do so for those patients who cannot tolerate the drug the hospitals usually use.

(C) Many drug manufacturers increase sales of their products to hospitals by selling these products to the hospitals at the lowest price the manufacturers can afford.

(D) Unlike some competing brands of painkillers, Novex is available from pharmacies without a doctor’s prescription.（D）

(E) In clinical trials Novex has been found more effective than competing brands of painkillers that have been on the market longer than Novex.

不明白为什么答案是d

医生开的不就是处方药吗，d哪里削弱了呢？

还有b为什么不对呢

看了很多讨论还是不明白

D是答案.B肯定不对了.

D说的真实意思就是说NOVEX不需要处方就能买到.

3/4的医院销售NOVEX并不是因为它有效才销售.因为NOVEX不一定医生开出来的.而是患者自己买的..

应该是c

C药厂为了升量而降价

题干的逻辑：量大是因为效果好，这里说了量大还可能是因为降价促销，所以打击了题干

B现在未用N的医院以后会用是因为病人无法忍受其它药

这个和题干推理（量大因为效果好）无关

如果改成“现在未用N的医院以后会用是因为病人无法忍受其它药，而不是因为效果好”，有一定竞争力

而且，请注意时间，现在的量大因为效果好 和 以后用不用没有必然关系

D医生不开处方

和题干推理无关

由于N好，所以医院发N.

C给出了另外一个原因。是因为医院买N便宜，所以才发N