We stood at the top from where we could see town.为什么用where不用which?(答案没错)

We stood at the top from where we could see town.为什么用where不用which?(答案没错)

where we could see town 是一个地点状语从句. 相当于一个地点, 在这句子里做的是from 的宾语. 如果是用which的话就是定语从句了.
回答完毕, 谢谢.

它是个地点状语从句，缺少地点状语成份

from which是正确的。
还原句子：we stood at the top and from the top we could see town
这里which代替the top
不会出现from where这种说法，因为介词后面不能直接跟副词（即便是where这样的副词也不可以）

from which = where