There are beautiful women in northern Jiangsu

Chapter 2 Su of Jiangsu, Bei of Hebei

"Students, look carefully. This is a piecewise function. There are different analytical expressions in different parts of the domain of definition..." There are densely packed function images on the blackboard. Math teacher Li Hui vigorously tapped the blackboard with the chalk in his hand. is rising.

"Boom, boom, boom." There was a knock on the front door of the classroom.

The door was gently pushed open, revealing the slightly apologetic face of the homeroom teacher Nian.

Nian Manjing is a young female teacher. She became the head teacher of Class [-], Grade [-], Yuncheng No. [-] Middle School just after graduating from graduate school. Because she was young, she interrupted the lecture of a teacher who was more experienced than herself. She felt very embarrassed. After getting the nod from the math teacher After signaling, he pushed open the classroom door and walked in.

Walking in behind her was a clean and straight boy. Even wearing the most ordinary school uniform could not conceal his appearance, but made him look even more outstanding.

"Mr. Li, I'm sorry to interrupt you." Nian Manjing walked to the podium and first apologized to Teacher Li, then turned to look at the students in the class, "Students, today we have a classmate I'm a new classmate, let me introduce you." After speaking, he turned to look at the boy standing beside him, "Su Bei, let me introduce myself to my classmates."

The boy nodded to Teacher Nian, first looked at Teacher Li and then at the students, "Hello, teacher, students, my name is Su Bei, Su from Jiangsu, and Bei from Hebei, and I will study with you from now on." , I hope to get along with you happily and make progress together.”

His voice was deep and provocative, and his attitude was neither humble nor overbearing. After he finished speaking, there was a round of warm applause, and some girls' discussions were faintly mixed in.

"How handsome!"

"He's so tall!"

"My intuition tells me that I must be a top student."

……

"Jianing, look, he's so handsome! I don't know where the teacher will arrange his seat." Lin Yi, Gu Jianing's deskmate, held her school uniform sleeves tightly, and looked at the standing girl with an idiot look on her face. Subei ahead.

Gu Jianing freed her school uniform sleeves from Lin Yi's clutches, picked up the pencil on the table and continued to draw on the draft paper.

"Then Su Bei, you should sit in the last row first, and wait for the mid-term exam before rearranging your seats." Teacher Nian finished speaking and pointed to the seat behind Gu Jianing and Lin Yi. In the last row of the class, only Gu Jianing and Lin Yi were still behind. Empty, such an arrangement is reasonable.

It's just that when Teacher Nian finished speaking, he couldn't help but hear a group of girls sighing slightly.

Only Lin Yi almost jumped up from her seat in excitement, but Gu Jianing had quick eyes and quick hands, and quickly grabbed her arm.

After thanking the teacher, Su Bei walked straight to his seat. Even though he was stared at by the crowd, his posture was still straight.

Maybe it was because Gu Jianing was next to the aisle in the middle, so Su Bei sat directly behind her.

As soon as she was seated, Lin Yi turned around and said, "Hi, Su Bei, my name is Lin Yi." After speaking, she pointed to Gu Jianing, "My name is Gu Jianing at the same table, you are new here, you can help me with anything Come to us directly."

"Thank you." Su Bei nodded slightly in thanks.

"Okay, everyone calm down, let's continue the class." Teacher Li bent his index finger and lightly tapped the blackboard to attract the students' attention.

"Let's continue to look at the image of this piecewise function. Let's first look at the abscissa. Its domain is the intersection of the domains of each segment. Then let's look at the ordinate. Its value range is the union of the ranges of each segment. ..."

(End of this chapter)