what it is?和 what is it?有什么区别?

what is it?和what it is?有什么区别 what it is?和 what is it?有什么区别? what it is 和how it is有什么区别 what is it 和 what it is 有何区别 what time is it 和what time is it有什么区别 What day is it?和What day is it today 有什么区别 how is it与 what is it有什么区别? this is 与 it is有什么区别 还有 what is it 与 what is this what is it和 what it is的区别 what is it…和what it is…区别 what is her/his job和what is it job 有什么区别 what用法What did you say和what say did you 有什么区别?What day is it