题干
当你询问对方想去上海吗时，应该问：( )
A：Are you a teacher?
B：Do you want to go to Shanghai?
C：What's this?
答案(点此获取答案解析）
B
当你询问对方想去上海吗时，应该问：( )
A：Are you a teacher?
B：Do you want to go to Shanghai?
C：What's this?
，则恰有一人投中的概率是