When the head teacher heard Chen Ziyi's words, he frowned and interrupted, "Hey! Chen Ziyi! You can't say that. How could Director Jiang's daughter steal such a small amount of money from you?!"

"You must have put the money somewhere and didn't find it. Go back and look for it again. Maybe you'll find it later. Okay, you guys go back first."

Chen Ziyi had a stubborn look on his face, obviously not satisfied with the result, but he had to leave.

"Wait." Jiang Yiran said indifferently.

Chen Ziyi turned around: "What do you want to do now?"

"Give me your Alipay account number and I'll compensate you for the money you lost. But you have to know that this doesn't mean An An took the money. I just didn't want to see you in such a difficult situation, so I compensated you."

Jiang Yiran spoke in a high-sounding manner, not feeling at all that taking the money would be the cause of gossip.

He even acted kind-hearted and waited for Chen Ziyi to thank him.

Chen Ziyi was stunned for a second, then laughed angrily: "No, you don't think I'm short of money, do you? Can't I make up this little money myself?"

"What I really want is to find out who stole the money. I think you know it was Ruan Anan who stole it, so you asked for a subsidy, right? Otherwise, you have too much money and nowhere to spend it."

Chen Ziyi spoke one sentence after another, very straightforward and sharp, without any pause.

"You!" Jiang Yiran was speechless.

Ruan Anan also rolled her eyes quietly. Why did Jiang Yiran like to act on his own? When he said this, he must have felt that he was very handsome.

The head teacher was speechless. What else could he say? Just then, his phone rang.

The head teacher held it like a treasure, not caring what the other party said. He opened his mouth and said, "Hello? What? Gas leak? Wait for me, I'll go back now."

Then, the head teacher said to the three people in front of him, "There's a gas leak at home. I'm leaving now. You three should have a good chat and solve the problem."

After saying that, the head teacher left in a flash.

The remaining three people looked at each other.

"Teacher, we can't calculate the optical path difference in this problem."

A cold and weary voice sounded nearby.

The three of them stopped talking and looked over at the same time.

Xi Wencheng took the question from Jiang Wuyang's hand and came to the conclusion after just one glance.

"You miscalculated the length of your OA in this question. The area where you can observe interference fringes has become smaller. I'll give you the answer to this question. You can look it up yourself. If you still don't understand, come back to me."

Xi Wencheng spoke very quickly, and it was obvious that he was at Jiang Wuyang's level, so he was completely confident.

After throwing the answer to Jiang Wuyang, he got busy again.

"oh."

Jiang Wuyang responded without any emotion.

When Jiang Yiran heard this, he subconsciously glanced at the exercises in his hand.

The question he asked today seemed to be a lens imaging question.

Jiang Wuyang probably didn't hear what they said just now, right?

Jiang Yiran suddenly felt a little panicked and wanted to finish things here quickly.

He cleared his throat and said in a steady voice, "Okay, since the teacher has left, there's no point in staying here any longer. Go back and look for it yourself to see if you left it somewhere. If you want me to make it up, give me your Alipay account."

Before he could finish his words, Chen Ziyi rolled his eyes in disdain, turned around and left.

Looking at Ruan Anan in front of him, whose eyes were red and whose face was obviously frightened, Jiang Yiran sighed.

"Okay, don't worry about it. It's not your problem. Go back."

After saying that, Jiang Yiran turned to ask Xi Wencheng questions.

Jiang Wuyang got the answer but didn't leave yet. She moved a chair and sat down next to Xi Wencheng, looking at the answer while solving the problem. She would not leave until she solved the problem.

Been sitting here for almost ten minutes.

I calculated the length of OA many times and finally got the same number as the answer.

After substituting it into the formula, I finally calculated the optical path difference correctly.

The original purpose of this question was to find the number of bright fringes, and finding the optical path difference was only one step.

So Jiang Wuyang didn't leave yet, and sat next to Xi Wencheng to continue calculating. When Jiang Yiran came over, Jiang Wuyang was already finishing.

Jiang Yiran walked over and his eyes swept away from Jiang Wuyang.

His voice was polite and distant: "Teacher, I don't understand a question and I would like to ask you for help."

Xi Wencheng was very satisfied with Jiang Yiran.

Although his grades are not outstanding, at least they are not bad.

What's more, this child has a serious attitude towards learning and has often brought questions to my office recently.

Although he is a bit busy now, he still has to read the questions he needs to read.

Xi Wencheng reached out and took the notebook from Jiang Yiran.

When I saw the familiar title above, I was stunned for a moment, and then I laughed out loud.

"You two are really destined to meet. You both asked the same question."

"You also can't calculate the optical path difference?"

Jiang Yiran was stunned for a moment, then replied, "Yeah, that's right."

Xi Wencheng immediately gave up and pulled Jiang Wuyang, who had already written the answer and was about to leave, over.

"Just in time, I see you're getting ready to leave. You must have figured out this problem. Come over and teach him."

Xi Wencheng certainly knew about their relationship. What was wrong with a sister teaching her brother? Obviously, Xi Wencheng only knew about their biological relationship.

And Xi Wencheng didn't even take a look at what happened with the head teacher just now.

Jiang Wuyang, who hadn’t had time to leave yet: …

Jiang Wuyang casually glanced at the table on Xi Wencheng's computer and sighed. Well, this old man is really busy, so let's help him this time.

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