题干
We're going to the cinema.
A：We're going to do it.
B：We're walking in the cinema.
C：We're going to see a film.
答案(点此获取答案解析）
C
We're going to the cinema.
A：We're going to do it.
B：We're walking in the cinema.
C：We're going to see a film.
，下列关于二者所含官能团的说法正确的是( )