在斑竹的刷8遍中说:"which不能引导限定性定从" 但是小胖的语法笔记中说: “限制性定语从句对先行词起限制、修饰的作用,关系代词有that,which,whom,who,whose以及关系副词when,where等,没有明显的逗号把从句与主语分开,表达的意思为被修饰词的一个定语。 例句: Do you know the professor who is speaking at the meeting? Where is the book which I bought this morning?” 2者怎么矛盾?