Advertisement: For sinus pain, three out of four hospital 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 seriouisly 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 increases sales of their products to

hospitals by selling these products to the hospitals at the lowest

price the manufactures can afford.

D) Unlike some competing brands of painkillers, Novex is available

from pharmacies without a doctor’s prescription.

E) In clinical trials Novex has been found more effective than

competing brands of painkillers that have been on the market longer

than Novex.

really couldn't understand it. even i turned to several native

speakers, they still couldn't help me figure it out.

thank whomever could help me on it.

怎么也看不出来，这题为何选择D.我觉得D应该是无关选项。

原文的推理是，因为3/4的医院因S病都给N要药，所以认为该药最有效。

起削弱作用的选项应该是B.

B的言外之意是说，许多医院不是因为N药最有效才给患者用的。类似于他因排除。

不知大家怎么看？欢迎讨论。