Which class are you in?What class are you in?这两个句子有什么区别?

Which class are you in?What class are you in?这两个句子有什么区别? what class are yon in?与 which class are you in?有何区别?回答时又什么不同 Which class are you in?和What class are you in的区别 Which class are you in? 英语翻译有what class are you in?Which class do you in What class are you in? What class are you in What class are you in?还是Which class are you in? 你是哪班的?到底是which class are you in还是what class are you in? 你是哪班的?到底是which class are you in?还是what class are you in? Which form and class are you in? －What class are you in,Mike?