定语从句中的that和which的用法区别答:但在下列情况中用that而不用which:1.当先行词是nothing, something, anything, all, each等不定代词时。e.g. Do you have anything that is important to tell me?2.当先行词被all, any, some, no, not, every, each等修饰时。e.g. I have some books that are very good.3.当先行...