6. 答案为D bold face is my answer
    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.

对于(D)pharmacies是医院里的 还是外面的呢？ 我没有选D原因是觉得pharmacies如果不在医院里 那么就是out of scope了 题目中谈的是hospital  还有一个点就是关于C的个人理解 C提到many drug manufactures 那我的理解就是制造Novex的drug manufactures也是其中的一个 C就是说很多医院给病人novex, 不是因为novex effective而是因为其生产厂商的要价低廉使很多医院用这个药 请大家看看我的思路有什么不对的地方？

在国外，PHARMACIES都是在外面的～ 一般是在卖化妆品及日用品商店里面～

楼下说的对，我看了答案就是C～ 哈哈

那就是你自己的解释对了的，哪里的医院都是想省钱....

其实我觉得C真的很勉强. 因为C中说的是Many drug manufacturers, 那除了这

个药商,其他药商也可以那么做,不成其为绝对原因的.

但是D的问题可能出在,虽然药剂师不需要医院处方可以开药从而将Novex归类于非

处方药,从方便的角度讲会很多人来用,但是这一概念和医院内的前提是无关的.

考虑这一点,可能只能选C了,虽然我觉得C也怪怪的.