who和 which的区别who和which的区别不是在定从里的 谢拉

I work in a company who/which?sells cars 用who还是用which 以及who和which的区别.. who和 which的区别who和which的区别不是在定从里的 谢拉 who is和who are的区别 who和whom的区别. who和whom的区别 Who和whom的区别 WHO和whoes的区别? WHO 和whose 的区别 which、that、who的区别 that,which,who,whose,whom用法和区别 有谁知道定语从句中的where 和which,who 和whom的区别呀? Who I am和Who am I的区别是什么? who are you和who you are的区别? who taught和who did teach的区别 求教:定语从句中用who,which和that修饰人的用法的区别 what .that.where.which.when.who.whom.的具体用法和区别 （that which what where who whom whose） 从句的用法和区别 a和one的区别?关系代词如何运用?如:who which that whose