问题描述: on which ,in which,of which ,from which 的用法和区别. 1个回答 分类:英语 2014-10-24 问题解答: 我来补答 关系副词=介词+关系代词why=for whichwhere=in whichwhen=during whichwhose=of which只知道这么多, 展开全文阅读