In the second class in the afternoon, because of the teaching and research meeting, the mathematics teacher asked everyone to study on their own.

One of the most important points that cannot be ignored is that students are given the right to think independently. As soon as the math teacher left, the classroom instantly became lively. Some of the students read carefully alone, and some got together to discuss the problems of study.

"Hey," Gu Nanguo looked around, and found that the people in the front and back rows had all gone to participate in the big discussion, and hurriedly gently pushed Chen Anqiao, who was seriously doing the question, with his arm.

"What's the matter?" Ancho looked up.

"That," Gu Nanguo opened his mouth and pursed it tightly in An Qiao's dark eyes.

He originally wanted to say that he saw Lin Xiaofang crying, but then he thought that he would say it by a boy himself, which would be unmanly.

In just a moment, he had an idea, stretched out his hand and pointed to the homework book: "This question is a little confused, can you please give me some guidance?"

"I'll take a look," Chen Anqiao stretched out his head and began to read the question carefully: "Use a wire with a length of 1 to bend the lower part into a rectangle, and the upper part is a semicircular frame, if the radius of the semicircle is x, find the area enclosed by this frame ......"

After reading the question and thinking for a moment, she took the draft book and began to calculate it carefully: "From the title AB=2x, arc CD=πx, then AD=......"

At this moment, the two of them were very close, so close that Gu Nanguo could smell the faint body fragrance emanating from the girl's body,

The girl's long eyelashes like black feathers hung down, covering a shadow on her white eyelids, her delicate thin lips moved slightly, and a lock of black hair on her forehead was gently blown by the breeze, but there was no sense of disobedience, which made Gu Nanguo a little distracted.

His heart was pounding, and the dust floating in the air seemed to become crystal clear.

"I see, the definition domain of the function is 0......" He blurted out that he couldn't bear the other party's deep thought.

“0，1/π+2…… Huh," Chen Anqiao, who was thinking hard, continued to write under the paper, and when she saw that the conclusion she reached was consistent with what the other party said, she suddenly raised her head. "You already knew the answer, didn't you?"

Facing his clear eyes, Gu Nanguo blushed, and reached out to scratch the back of his head: "No...... No, my thoughts were chaotic for a while, and I was suddenly enlightened by your point, and the answer was ...... And it came out. ”

"Gu Xueba, amazing!"

An Qiao didn't think much about it, and gave him a thumbs up, admiring him.

The teacher hasn't talked about this type of question at all, and the reason why she is a little eyebrow is because she has the habit of previewing in advance, but she never expected that the other party would just follow her own train of thought and directly say the correct answer.

Where is the credit for this?

Gu Nanguo glanced at the neatly written formulas on the notebook, and also admired them: "You are amazing, the steps of the calculation are closely related to the textbook-"

"No way," An Qiao stuck out his tongue at him: "My mother said that for people who don't write beautifully, if they don't write neatly, they will suffer a big loss in the paper score during important exams." ”

"Your parents must be very powerful, right?" remembered that during military training, I heard An Qiao say that his parents had graduated from No. 1 Middle School, and Gu Nanguo was indescribably envious.

"It's not that powerful, it's just an ordinary salaryman. An Qiao smiled: "I told you last time that my mother has been in poor health because of the root of her illness because of Anna, and now she has almost become a housewife." ”

"Actually, my mother also became like that because she gave birth to a younger sister. ”

Hearing this, Gu Nanguo blurted out.

"God, you still have a sister?" Anjo's eyes widened and he let out a low sigh.

"Yes, yes, but she-" The light in Gu Nanguo's eyes instantly dimmed, and his eyes were slightly red: "She was gone when I was in the second grade, otherwise she should be in the first grade this year like your sister." ”

Gone?!The unexpected answer made Anjo a little overwhelmed.

"I'm sorry, I shouldn't have brought up this topic—" she muttered for a long time.

I remember the last time the other party said that when they were in the second grade, because something happened at home, the brothers had to take a year off from school, which was what I was referring to. She thought.

"I don't blame you, I said it myself. ”

Gu Nanguo shook his head with a gloomy expression, turned around and continued to work on the question.