你想知道对方叫什么名字?你可以问:( )
A:What are you doing?
B:What's your name?
C:Where are yo?
异戊烷的二氯代物的同分异构体有( )
当今世界的科学家发展和技术进步突飞猛进,以下与物理有关的论述正确的是( )
— What's your favourite ________?
— It's football.
下列对男女同学的交往认识正确是( )