When I came to school, I rang the bell for the last class in the morning.

When Sang Ji saw the office under the complex, he panicked slightly, and couldn't help but speed up his pace, for fear that Chen Jialiang would rush out of it and teach another lesson indiscriminately.

In the past, Chen Jialiang was at most verbal, but now he engages in corporal punishment at every turn.

If it gets worse like this, I probably won't want to come to school anymore, Sang Ji thought.

"Teacher Lin."

When I walked up to the teaching building, I happened to meet Teacher Lin who was going to class seven, and Sang Ji chased after him with his little short legs and called sweetly.

Teacher Lin turned her head and smiled, her eyes swept over the schoolbag she was carrying behind her, "If you miss a few more classes, you won't be able to keep up." ”

Sang Ji scratched his head, "I'll try." ”

"Good!" Walking to the fourth floor, Teacher Lin stopped and held Sang Ji's shoulder with one hand, "I'm preparing for the midterm exam, I hope you can show me an improved score." ”

"Hmm."

Sang Ji answered and walked into the classroom with Teacher Lin.

Li Jiaen raised his head and looked at her the moment Sang Ji entered the classroom.

Weakly called her name: "Sanji ......"

Li Jiaen is a good friend that Sang Ji thinks, and this time in Sang Ji's consciousness is a betrayal, and he doesn't want to talk to Li Jiaen and even wants to avoid her.

Sang Ji didn't look at Li Jiaen, and he didn't pay attention to her.

Classes had already begun, and she took out her books and stared intently at the blackboard.

"Sanki, I'm sorry." Li Jiaen always tilted his head to look at her.

Mr. Lin knocked on the blackboard and wrote down a question: "Knowing X-B(n,1/2), Y-B(n,1/3) and EX=15, find the value of EY." ”

She put down the chalk, glanced at the students below, and finally looked at Sang Ji: "In five minutes, draw a classmate to come up and write the answer." ”

Since being made up by Xu Jiamu that day, Sang Ji felt that the math problems were actually not very difficult, so he flipped through the textbook and thought about the formula for two minutes, and then wrote the answer in the draft book.

Teacher Lin, who was shuttling back and forth between the students, happened to walk behind Sang Ji, and saw that her solution idea was very clear, so he stopped and looked at it for thirty seconds, and then nodded and walked back to the podium.

Five minutes later, when Mr. Lin drew his classmates, Sang Ji had a feeling that he would be chosen.

Sure enough, Sang Ji was named.

I didn't even take a notebook, I went directly to the podium and picked up the chalk, and wrote the analysis on the blackboard.

From the formula EX=np,

np=15, p=1/2, then n=30

EY＝1／3n

EY＝10

"Okay." Mr. Lin took the chalk and commented on it after Sang Ji finished writing.

Then he added: "Sang Ji has made great progress, and I hope the students will learn more." ”

"Cut, this question is so simple, anyone will do it!"

Sang Ji returned to his seat, heard Wang Chen's disdainful words, raised his eyelids, and turned to the next knowledge point.

"Wow, Sangji, you're so good!" Li Jiaen praised in surprise.

Sang Ji was still indifferent, flipping through the book and moving the pen without replying.

After five seconds, Li Jiaen reacted, glanced at Sang Ji in a daze and hurriedly turned around, as if the person who said that just now was not her.

——

Li Jiaen likes Sang Ji, but prefers Su Yuan.

She wants to help Su Yuan catch up with the person she likes, but she doesn't know that it will hurt Sang Ji and affect the friendship between them.

Since the accident in the grove, the two have gradually become estranged and now ignore each other.