[问题]在argument 中什么是可以批驳的

hanlu2005UID: 184597

疑惑一：什么可批驳？什么不可以？
  166The following appeared in a local newspaper.

"People should not be misled by the advertising competition between Coldex and Cold-Away, both popular over-the-counter cold medications that anyone can purchase without a doctor's prescription. Each brand is accusing the other of causing some well-known, unwanted side effect: Coldex is known to contribute to existing high blood pressure and Cold-Away is known to cause drowsiness. But the choice should be clear for most health-conscious people: Cold-Away has been on the market for much longer and is used by more hospitals than is Coldex. Clearly, Cold-Away is more effective."

prescription. Each brand is accusing the other of causing some well-known, unwanted side effect: Coldex is known to contribute to existing high blood pressure and Cold-Away is known to cause drowsines。

well-known 可以批驳吗?
在精华区旧帖中曾看到pooh前辈说所谓前提不可以驳斥的
可是什么是前提？什么是论据呢？

向日葵的孩子UID: 162587

ETS官方指南上说：
assumption: a belief, often unstated or unexamined, that someone must hold in order to maintain a particular position; something that is taken for granted but that must be true in order for the conclusion to be true. 个人觉得，有些文章的前提是没有直接用文字给出的，但是可以明显感觉到文章建立在一个前提上。（有点抽象~~~）
argument: a claim or a set of claims with reasons and evidence offered as support; a line of reasoning meant to demonstrate the truth or falsehood of something

poohUID: 146994

这里well-known不能批吧，这是作为前提来说的，就是assumption, 如果我们对于前提都否掉，可是说这里连进行argue的意义都没有。well-known是形容这两种side effect的，根据常识也可以知道这两种症状是总所周知的，没有什么问题。