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Lu Xingci knew that the teacher was grumpy. He didn't expect him to be so grumpy.

However, there are more than 20 students, male and female. When they skip class, looking at the classroom from the podium is like looking at the old lady's teeth full of gaps.

It's bad to look at it.

Seeing Lu Xingci's silence, everyone felt that it was not very nice to drag him down: "monitor, knock on the door. The teacher must let you in."

Even Duan Jiayan didn't object to the proposal.

Chen Yuegang also brought out Lu Xingci's exercise book. Lu Xingci turned over: "seven or eight chapters, right? I can finish one chapter before class, and you can check the other chapter with your mobile phone."

The whole party is going to be fucking moved and cry.

What power is this? In a word, it gives people an unparalleled sense of security.

This is the power of Xueba.

Their exercise book was written by the chemistry group teacher of No. 1 middle school. There are not many questions in each chapter, but it is difficult. There are basically no original questions on the Internet. They can only find similar questions and calculate the answers.

The students who studied a little better divided up the questions and began to check and calculate.

Duan Jiayan didn't even have the qualification to take the title, but the bastard was still stirring up the flames: "man-machine war is imminent. Who can finish his homework in 15 minutes? When the bell rings after class, will we congratulate the mobile phone group or Lu Xingci?"

Lu Xingci turned his pen and looked at him: "how can you say that?"

Duan Jiayan: "my mouth has its own ideas. It likes Baba. I can't kill its nature."

Lu Xingci's eyes fell on his lips.

Duan Jiayan felt as if he had been hooked.

At that moment, it seemed that an electric current ran across the spine. Duan Jiayan thought it was a new way of provocation. He provoked back: "I haven't seen it."

Lu Xingci: "I haven't seen it."

Duan Jiayan had a bad intuition when he suddenly spoke so well.

Lu Xingci said slowly, "your mouth is so thoughtful. Why don't you let it help you write chemistry questions."

Duan Jiayan: "

The author has something to say: don't you have it