which和who用法的区别这样一个句子里面They are all good at maths,but WHICH is the best?which可以用who替代么?为什么呢?可是什么时候不可以呢？指物的时候么？

which和who用法的区别这样一个句子里面They are all good at maths,but WHICH is the best?which可以用who替代么?为什么呢?可是什么时候不可以呢？指物的时候么？ that,which,who,whose,whom用法和区别 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 which,what与who的用法有何区别 who,which,that,whose和whom的用法这几个关系代词用法有什么区别?请举例! that和which的用法区别 which 和that的用法区别 as和which 用法的区别英语语法 which 和for which的用法与区别 为啥? who whom whose which that where when 这几个的用法和区分我追加100分..who whom whose which that where when 这几个的用法和区别. what,which,that,where－－求求各位了which,that,where,when,who的具体用法和相互的区别,有条理一些,我已经用尽家产了 on which ,in which,of which ,from which 的用法和区别. I work in a company who/which?sells cars 用who还是用which 以及who和which的区别.. Who Whom Whose Which That在定语从句中的区别和用法 which、that、who的区别 which,who,whom,在从句中的用法WHO和whom的稍详细些,还有whose