Engineering drawing I rule you

With the answer provided by Kong Xinhui, Xie Huai lived comfortably for the next few weeks.With years of reference experience, he can control the homework to about 65 points every time, with a clear purpose and no exaggeration.

Sure enough, Qin Yiyan never came to trouble him again, and the approval for leaving school was passed in a timely manner.

The only thing that upset him was that when the choir announced the admission list, both he and Jiang She were admitted by the tenor department.And because of the initial spelling of his surname, his name was suppressed by Jiang She.

When Kong Xinhui excitedly sent him a message, he was not at all happy.Ever since he was underestimated by the male teacher during the interview, he has no good impression of this club, and now he is in the same part as his enemy, which means that he will meet every week for rehearsal.

Kong Xinhui didn't understand his character, and happily encouraged him to say that his singing skills are so good, and he will definitely show his talents in the choir and compare Jiang She.

Xie Huai could only reply perfunctorily with a string of um words, then packed up his things and went to the concert hall to rehearse.

He knew that Jiang She would definitely pick the seat in the front row, so he deliberately stepped on to the classroom, and slipped to the last row to sit in a place with a good geomantic omen.Unexpectedly, Kong Xinhui also came very late today, and there were no vacant seats in the classroom, so she asked Xie Huai in a low voice if she could sit next to him.

Of course, Xie Huai would not disagree, put away the coat on the back of the chair, and signaled her to take a seat.

The first rehearsal was very simple. The teacher first asked everyone to climb the scales, and then distributed the sheet music to teach the first song of the end-of-semester performance - "Shui Tiao Ge Tou".

It was the first time for the two to be so close.Kong Xinhui seemed very cautious, and even sang several wrong notes in such a familiar song. During the break, she came to ask Xie Huai if she could sing the harmony with her.

Xie Huai looked at her calmly, squeezed the music score in his hand, and agreed to her request.Several students were attracted by their singing and came to watch. They continued to attend classes until the end of the break. The first rehearsal ended in such a non-embarrassing atmosphere.

On the way back to bed, Kong Xinhui also silently followed behind him.Perhaps realizing that the two were getting too close, she tried to change the subject: "Xie Huai, have you heard that Mr. Yang is on a business trip, and next week's engineering drawing class will be taught by Senior Qin."

"What, Qin Yiyan came to give us a drawing class?" Hearing that name, he was like eating gunpowder.Kong Xinhui was quite frightened by his reaction, he hesitated and said, "Yes, a notice has been sent in the class group."

Xie Huai had never seen that broken group before. When he heard the words, he turned on his phone and confirmed that the news was true. He was instantly upset—for some reason, he always felt that meeting Qin Yiyan in class would be a bad thing.

Seeing that he had reached the dormitory area, he found an excuse to say goodbye to Kong Xinhui, kicked the gravel on the road and walked back to the dormitory cursingly.

As a result, as soon as the door was opened, Zhu Kecheng rushed over with his mobile phone in hand, as happy as during the Chinese New Year: "Brother Huai! You know the construction plan for next week..."

"Understood, don't mention him to me again." Xie Huai interrupted irritably, put on his earphones and climbed onto the bed to lie down.

But until Tuesday, the class still has to go.Zhu Kecheng dragged him to the classroom 10 minutes earlier, but Qin Yiyan arrived earlier and was already debugging the equipment.

And today he is wearing a whole suit, from the tie to the coat is black, looking extraordinarily stern.The hem of the top is narrowed, paired with straight suit pants, and the pair of long legs are very eye-catching.

Sure enough, as the students arrived one after another, there were a lot of discussions in the classroom, basically all girls were committing nympho.

A narcissist who looks like a dog.Seeing this, Xie Huai scolded him in his heart for dressing like this, he was simply seducing ignorant female college students.

The school bell rang just as soon as I finished complaining.Qin Yiyan turned on the microphone pinned to his collar, blew a few breaths to test the sound, stood on the podium and looked at this lecture theater that can accommodate 200 people, and said unhurriedly: "Hi students, I will substitute for you this week. .According to the syllabus, I will continue to teach Chapter 7 in the first half of the class, explain the wrong questions in the second half of the class, and leave time for everyone to answer questions."

After finishing speaking, he opened the teaching plan and continued with the content of the previous lesson: "Last week we talked about the conical surface. Since the projection of the cone on the H surface has no accumulation, we can make the prime line passing through point A as an auxiliary. It’s the plain line method.”

The concept of Suxian is very abstract. In order to facilitate understanding, he draws pictures on the blackboard while explaining the knowledge points. With the slight collision sound of the little finger rings, pieces of horizontal, vertical, thin and strong blackboard writing are neatly listed in everyone in front of you.

He will draw pictures almost every time he talks about a key point, and the drawing speed is very fast, and he will not delay the rhythm of the class at all while talking while drawing.

This knowledge point is Xie Huai's Achilles' heel, but today, he, who has never listened to a class before, unconsciously opened the book, and took notes with pens of different colors according to Qin Yiyan's writing on the blackboard.

By the time he realized that he was listening to a class, the books had already been crossed to the brim.During the break, he read the knowledge points of this class several times, and found that he understood the sample questions in the book.

This person surnamed Qin is really interesting.Xie Huai sat on the chair blankly, blinking in disbelief.

After a short break between classes, Qin Yiyan found a few more classic exercises to consolidate, and then explained the wrong questions in the previous weeks of homework as planned.

"Students, please turn to page 58 of the workbook, 6.3. The correct rate of this question is not high, so I will ask the students to do it on stage first." Qin Yiyan opened the roster and found that there was no mark next to Xie Huai's name, that is, Said that he got the question right at the time, so he looked up to the back row of the classroom, "Xie Huai, you do it."

"...What?" He got up in a daze, and it took him a long time to realize that he wanted to write the question by himself, so he quickly said, "I don't know how to do it."

"But you will do it when I approve my homework. This question contains a kind of thought, and you shouldn't forget it so quickly." Qin Yiyan walked down from the podium and stood beside him, "I allow you to bring your textbook to draw .”

The focus of the whole class immediately focused on the two of them. Xie Huai glanced at the people around him, and could only pick up the book and walk up.

The title is very concise, given several parallel lines, and asked him to find the distance from point A to straight line BC.But such a simple topic, he felt very strange, the hand holding the chalk was hanging in the air, and he didn't write for a long time.

Hearing the discussions among the students, Xie Huai felt like sitting on pins and needles, and winked at Qin Yiyan: "I really don't know how to do it."

"Do you know how to solve this problem?"

He flipped through the textbook with his chalk-stained hand, searched for the corresponding chapter for a long time, and whispered, "Changing faces."

"How many times have you changed faces?"

Qin Yiyan kept asking questions, it seemed that he didn't want to give him a step down.Xie Huai could only close his eyes and say nonsense: "One time."

As soon as these words came out, Qin Yiyan finally realized the problem.Since signing the gambling agreement, Xie Huai's homework has been kept above [-] points each time, and even details such as the thickness of the outline, the length of the dotted line, and the font have been drawn neatly according to the regulations.

In the class just now, he also saw Xie Huai bury his head in writing a class note, and all kinds of actions gave him the illusion that this child has changed his mind.

That's why he wanted Xie Huai to come up to do the question, and to make this question with a low accuracy rate in front of everyone, so as to stop the students from looking down on him.

The result is...

For a moment, Qin Yiyan didn't know whether he was lamenting how good he was at copying his homework, or whether he really didn't know him too well.

"Go down first. Don't leave after school, I have something to talk to you about."

The author says:

There is another update later, can you have comments (star eyes

Xiao Xie: Don’t worry, my reference technique is very good

Lao Qin: Indeed, I was careless and did not flash