the place (which/where)you come from,选哪个,come from后面不是少宾语吗?应该用Which啊,但是为什

问题描述:

the place (which/where)you come from,选哪个,come from后面不是少宾语吗?应该用Which啊,但是为什
前面漏字了,但是为什么网上都是说前者对?

This is where I come from.
This is the place which I come from.
where = the place which.说详细点好吗?是the place后面必须加Where吗,如果不是,不就少宾语了吗,from的宾语