1. what 与 which 都是疑问代词,都可以指人或事物,但是what仅用来询问职业。如: What is your father? 你父亲是干什么的? 该句相当于: What does your father do? What is your father's job? Which 指代的是特定范围内的某一个人。如: -\-\-Which is Peter? 哪个是皮特?