题干
—Are those your books?
—____. They are hers.
A：Yes, they are
B：Yes, those are
C：No, they aren't
D：No, those aren't
答案(点此获取答案解析）
C
—Are those your books?
—____. They are hers.
A：Yes, they are
B：Yes, those are
C：No, they aren't
D：No, those aren't
中，构成从集合A到集合
的映射是（ ）