Chapter 73: I have a question, very urgent

Lu Mian didn't know Sui Yuan's intentions, and quickly turned his fingers back.
[I wish to stop the trouble, the exam number in the exam room has been arranged and cannot be changed. 】
[Others can't change it, but you can! 】
Lu Mian couldn't laugh, staring at the text message as if she saw Sui Yuan shaking her bald head, smiling slyly at her.
[How many points do you want? ] She returned.
[It's better than Lu Xinnuan's exam! 】
Lu Mian:...
Why does this have something to do with Lu Xinnuan again? !
Before she could say anything, Ding Chai, who returned after class, stood at the back door of the classroom and waved at her.
"Lu Mian, come to my office."
"I go……"
Lu Mian rubbed his eyebrows. Did Teacher Ding have nothing to do every day? He had to stare at her.
She put her mobile phone in her pocket slowly, and put her hands in her pockets, and went to the office in a dauntless manner.
Without Sun Jiaying's physics office, the atmosphere was harmonious.
Ding Guai opened the stool for her, lowered her voice and said in a vague and mysterious voice: "Tomorrow's monthly exam, or I will give you some important points..."
"..." Lu Mian's mood was quite complicated.
She casually lit circles on the ground with her toes, and said calmly and lazily: "Mr. Ding, I don't need it."
Dingchai: "..."
His blood was choked in his throat, and a few teachers walked into the office, and he had to swallow it back.
"Has the admission ticket for your class competition been printed out?"
"not yet."
"Teacher Ding has a printer, so pass it to Teacher Ding to type it out."
They said this and looked back at Dingchai: "Teacher Ding, I'm sorry to trouble you. It just so happened that you also printed out your class."
"our class……"
Ding Chai knew that no one in his class, except Lu Mian, signed up for the competition. The knowledge that the first year students mastered is not enough. Participating in this kind of competition is either a master student or a cannon fodder.
But Lu Mian didn't hand in the registration form, and he didn't ask any more questions.
After all, based on Lu Mian's historical achievements, it doesn't make much sense to participate or not to participate.
Several teachers over there are still sighing.
"In this competition, our class is hopeless. The top students in Class 1 of the third year of high school are not paperwork."
"Run with you, you can't not sign up alone, that's shameful!"
"That's true! Teacher Ding, how about you?" A teacher turned his attention to Ding Guai. Later, thinking of something, he quickly said: "I forgot, you are in class 25."
The other party was outspoken and didn't have much malice.
But all the teachers present understand the obscure meaning of class 25 representatives.
The young newly appointed Ding Chai had an awkward expression, scratching his head and smiling, not knowing what to say.
Lu Mian grabbed his good-looking eyebrows and interrupted him suddenly, with a faint voice: "Teacher Ding, can I borrow your computer?"
"...Wait a minute, I will give these teachers admission tickets first."
"Teacher, I have a question, I am very anxious." Lu Mian insisted.
"what is the problem?"
Ding Chai leaned over while operating the computer.
"That's the physics problem." Lu Mian shook the paper and pushed it over.
[Find a rigid earth with a mass of m and place it in free space...] (PS: The title comes from the Internet, after all, the author is a physical waste...)
Ding Chai was only looking sideways, but when he saw the subject, his eyes lit up.
He is a physics teacher and he is naturally interested in physics problems.
"The computer is for you. I'll take a look at this question first." Ding Guai let the computer out very well.
Lu Mian sat over, gently shook the screen direction, and quickly operated his fingers on the keyboard.