题干
根据文章意思，正确排序。
①Yes, we have a new music teacher.
②Do you like her?
③Is she old?
④Do you have new teachers?
⑤ No, she isn’t. She is funny.
⑥Yes, we all like her.
____
答案(点此获取答案解析）
④①③⑤②⑥
是椭圆
上的一个动点，则
的最大值为（ ）