某商场销售一种“艾丽莎”品牌服装，销售经理根据销售记录发现，该服装在过去的一个月内（以30天计）每件的销售价格P（x）（百元）与时间x（天）的函数关系近似满足P（x）=1+$\frac{k}{x}$（k为正的常数），日销售量Q（x）（件）与时间x（天）的部分数据如表所示：

已知第2哦天的日销售量为126百元．

（Ⅰ）求k的值；

（Ⅱ）给出以下三种函数模型：

①Q（x）=a•b^x；

②Q（x）=a•log_bx；

③Q（x）=a|x﹣25|+b．

请您根据如表中的数据，从中选择你认为最合适的一种函数来描述日销售量Q（x）（件）与时间x（天）的变化关系，并求出该函数的解析式；

（Ⅲ）求该服装的日销收入f（x）（1≤x≤30，x∈N^*）（百元）的最小值．

短文填空

    A professor stood before his class of twenty senior organic biology students and was about to hand ____ the final exam papers.

    “I want to say that ____has been a pleasure teaching you this term. I know you've worked ____(extreme) hard and many of you are off to medical school after summer. I know no one wants to get their GPA(平均成绩)____ (mess) up because they might have been celebrating this week. Anyone who prefers not to take the final exam today ____(receive) a 'B' for the course.”

    The students were filled with ____(happy) as they got up, walked to the front of the class, and accepted the professor's offer. As ____last taker left the room, the professor looked at the handful of ____(remain) students and asked, “Anyone else? This is your last chance.”

    One final student rose up and chose not to take part in the final. The professor closed the door and checked who were still in the classroom.

    “I'm glad to see you believe in ____(you),” he said. “You all get 'A's.”

    How many have taken the easy way out? The short road, the easy path ____the light load all lead to lower grades in school of life.

体表被覆鳞片，生活在水中，用鳃呼吸的生物是（  ）

作文：

      同学们，在第一单元的学习中，刷子李和泥人张的绝活让我们佩服地五体投地，王小玉的说唱更是令人叹为观止。为你周围有绝活的人，比如能一笔画出一个圆的数学老师，能生动模仿各种声音的同学等，写一篇作文。

      要求：①题目自拟。②要抓住人物动作、语言、神态等方面的特征，写出他们的奇处、绝处。③不少于650字。