题干
给下列句子重新排序
____ He's my brother.
____ Who's that boy?
____ Yes, she is.
____ Is she your mother?
____ No, he isn't. He's my teacher.
____ Is he your father?
答案(点此获取答案解析）
2,1,4,3,6,5
：
(p＞0)的焦点与双曲线
：
的右焦点的连线交
。若
( )