which 与in which的区别

问题描述:

which 与in which的区别
RT

which 用于定语从句,作关系代词,在句中要做成分
in which 用于定语从句,作关系副词,在句中不做成分,in which=where
in which 只能用在定语从句中,等于where,在定语从句中作状语.