what where 引导的从句区别

题目

what where 引导的从句区别
You are saying we are born equal and that's where I disagree.
这里为什麽要用where而不用what?
what不是可以作宾语成分吗?
那就是说用what的话disagree后面要加with?

答案

what当然可以做宾语成分,但是disagree后面是要加介词的,不能直接跟宾语的,所以用where咯