how are you ,how are you doing 和what's new 三个句子有区别吗?

how are you ,how are you doing 和what's new 三个句子有区别吗? what's up?what's new,how are you doing?的区别和分别得回答 WHAT IS NEW?HOW ARE YOU DOING? how are you doing和how are you的区别 how are you doing?和how are you going?有何区别? How are you?与How do you do?和How are you doing?的区别是什么? how are you 和 what 's up的区别是什么 how are you how are you doing的区别 How are you doing How are you doing? What height are you和 How high are you 区别 请问How're you doing?与What are you doing?的区别是?如何区别使用这两个句子?