another CR !!!

大傻猫

the wild mouflon sheep of the island of Corsica are direct descendants of sheep that escaped from domestication onthe island 8000 years ago. they therefore provide archaeologists with a picture of what some early domesticated sheep looked like, before the deliberate selective breeding that produced modern domesticated sheep began.
the argument above makes which of the following asumptions?
答案是D : mouflon sheep are moresimilar to their forebears of 8000 years ago than modern domesticated sheep are to theirs.
可是我觉得B: there are no other existing breeds of sheep that escaped from domestication at about the same time as the forebears of the mouflon.
有没有高手可以指点一下.(这个是陈向东逻辑里的P58:49题)

晴天猪

对于假设题，只要选出必要条件即可，就是说只要这个条件使前提到结论能够说得通，就是正确的，而D正好满足这一点。B选项看起来就略嫌无关了。

欢迎讨论~

terrygoodboy200

An adeverse assumption of the true assumption will ruin the whole agrument.
U  can add "not" to B ,to D.
then you will find D is better.