请教定语从句：This is the place which he would like to visit.中which

首先你要知道,which是关系代词,where是一个关系副词,关系副词你可以将其理解成介词+关系代词.所以具体要选用关系代词还是关系副词,要看引导词在从句中所充当的成分,如果主谓宾完成,不缺成分,那么这个时候就要选用关系副词充当状语,相反,如果引导词在从句中充当成分（主语、宾语...）,这个时候就需要选用关系代词来代替缺少的不分.
This is the place .这个句子中,从句部分为he would like to visit,很显然,缺少的是宾语,所以我们需要用关系代词来充当宾语.故选用which而不用where.
对比一下下面这个句子,
this is the room where(in which) Lu Xun have ever lived.
希望我的讲解你能明白~