who is this和who is that有什么区别?请讲清楚点,用法有什么差别?要例子的 但是我看过：Who is this?A.This is Jack.B.That is Jack.要选哪个?为什么?

Who is this man? who is this man? who is this girl Who is this man who is this gay? who is this guy? who is this This is WHO? Who is this? who is This boy Who is this? who the fuck is this, 请问Who is the girl?和Who is this girl?意思有什么不同? who is this和who is that有什么区别?只用于电话用语吗 Idon't know ___book this is.A.who B.whomIdon't know ___book this is.A.who B.whom C.whose D.who's who is和who are的区别 who is who is