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 serously undermines the advertisement's argument? C) Many drug manufacturers increase sales of products to hospitals by selling these products to the hospitals at the lowest price the manufacturers can afford. D)unlike some competing brand of painkillers, Novex is available from pharmacies without a doctor's prescription. 我看到有人讨论。但都是集中在B和C，我比较困惑的是D。我是做对了，可昨天同学打电话给我，问D为什么不也是排除他因。因为处方药也不是能够随便乱开的，作为医院要付一定的责任。eg，阿斯匹林和吗啡… 还有C中these products的指代，不一定是说Novex吧，而是包括novex在内所有的产品吧？那这样，他因也不成立了啊。 请执教~~~
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