GWD 29-9，请教

云游

云游 发表于 2013-9-11 21:10
I still consider E weird, should not a premise in the stimulus be accepted as is written? E seems  ...

Well I see, E does not undermine premise it just point out an neglected premise:

Premise: M can't hear low-pitched voice
E: M can't hear high-pitched voice, either.

Since E has proved that whether M can hear the boat is not related to M's possibility of hitting the boat, the conclusion can be very well drawn.

Kya

同意楼上，应该就是一个断桥的思路，B选项有out of scope的嫌疑，只是说了不reduce spped(which已经执行的方案)可能有的好处，但是没有直接攻击到逻辑链： 声音小，听不到-----be killed more
严重点说，貌似反驳了前提。。。。。
个人见解。。求拍砖探讨

bbmaker

还是中文解释能看明白

gar_bbbbb

请问这道题分类算是什么TAT，好纠结啊。