根据下面的材料，写一个单句介绍某市的概况。(40字内)

材料一：某市至今已有几千年的历史，历代为郡、州、府、道治所，现为国家历史文化名城。

材料二：某市铁路、公路四通八达、机场开通国内十多条航线。

材料三：某市景色优美，有景区被评为中国AAAA风景旅游区。

材料四：某市的国内生产总值和财政收入在我国地级市中名列前茅。

一次考试中，五名学生的数学、物理成绩如下表

（1）要在这五名学生中选2名参加一项活动，求选中的同学中至少有一人的物理成绩高于90分的概率．

（2）请在所给的直角坐标系中画出它们的散点图，并求出这些数据的线性回归直线方程．

参考公式回归直线的方程是：y=bx+a，

其中对应的回归估计值．b=$\frac{\sum _{i=1}^n\left(x_i-\stackrel{-}{x}\right)\left(y_i-\stackrel{-}{y}\right)}{\sum _{i=1}^n{\left(x_i-\stackrel{-}{x}\right)}^2}$，a=$\stackrel{-}{y}$﹣b$\stackrel{-}{x}$．

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错词下划一横线，并在该词下面写出修改后的词。

注意：1). 每处错误及其修改均仅限一词；

2). 只允许修改10处，多者（从第11处起）不计分。

    Interest is a kind of power that can drive people learn actively and happily. And it also makes learning more effective and efficiently.

    I really appreciate the opinion. I begin to be crazy about English when I was a little boy. And I got interested in foreign culture and custom in particular to meet my curiosity. I read English stories, listened to English songs and watched English films on every day, all of that even seemed to be the “meal” of my daily life. As the result, I always did very well in English exams.

    In a word, interesting is the key to success. Anyone who are interested in something will devote himself to them.