（Ⅰ）若依据去掉一个最高分和一个最低分规则计算应聘老师成绩，试确定最终应聘成功的2名数学老师的序号；

（Ⅱ）在课堂实录环节，每名应聘老师都需要从5名评审专家中随机选取2名进行点评，且每名应聘老师的选择互不影响，设X表示评审专家A进行点评的次数，求X的分布列以及数学期望；

（Ⅲ）记评审专家A与评审专家B给出的评分的方差分别为 $S_1^2，S_2^2$ ，试比较 $S_1^2$ 与 $S_2^2$ 的大小．（只需写出结论）

    A well-dressed man goes into a restaurant one day. He sits down at a table near the window. A waiter comes up to him and says, “Can I help you, sir?”

    The man says, “Can I see the menu?” “Certainly.”

    The man wants a good meal and he wants a lot of nice dishes. The waiter gets them for him. The man is having his meals. At this time, a boy comes in and sits beside the man. He asks the man to give him an ice cream. The man does so.

    Now the boy is eating his ice cream. The man says, “I go out for a newspaper.” The man goes out.  After the boy eats his ice cream up, he stands up and goes to the door.

    “Excuse me. Your father doesn't give the money for the meal and your ice cream,” The waiter stops him and says.

    “Father? You are wrong. He isn't my father. I don't know him. I meet him in the street. He says he will give me an ice cream if I come here at 12 o'clock.”

家蚕的变态发育过程是指（     ）

选择下面排序正确的一项（    ）

①在快乐中我们要感谢生命，在痛苦中我们也要感谢生命。②要记住：不是每一道港湾都能入海，不流动的便成了死湖。③生命中不是永远快乐，也不是永远痛苦，快乐和痛苦是相生相成的。④不是每一粒种子都能成树，不生长的便成了空壳。⑤好比水道要经过不同的两岸，树木要经过常变的四时。

（Ⅰ） 解关于m的不等式f（1）+f（﹣2）≥5；

（Ⅱ）当x≠0时，证明： $f\left(\frac{1}{x}\right)+f\left(-x\right)\ge 2$ ．