Just when the sophomore (11th) class was in a uproar because of the cheating incident, the urban village rented by Lin Zifeng ushered in an uninvited guest, Detective Liu. Pen "Fun" Pavilion www.biquge.info

After analyzing the map of Liujia Village last night, Detective Liu had locked the place where Lin Zifeng lived in a small area in the middle. Detective Liu calculated one by one that there were a total of 32 households in this area, and in order to avoid startling the snakes, Detective Liu decided to go door-to-door to investigate.

Knocking, there was a knock on the door of a low bungalow, and it was an aunt in her fifties or sixties who opened the door, and when she opened the door, there was a strange man's face in front of her, "Who are you?" the aunt asked with a frown.

Detective Liu took a slight look at the aunt's face, and felt that it was far from the young man he saw yesterday, and it should not be his parents or relatives, so he put on a smile and said, "I am from China Life Insurance Company, do you need to..."

Before Detective Liu finished speaking, the aunt immediately snapped the door shut, and muttered, "How come there are as many people selling insurance as pyramid schemes these days..."

Detective Liu turned around indifferently and continued to walk towards the next house, with his study of facial features and face shape, as long as he saw the parents of the young man yesterday, he was confident that he would be able to recognize it, so that he could find the boy's address without difficulty. As for the girl in the photo, as long as the two will see each other, the day when they will find her is not far off.

Detective Liu continued to disguise himself as an insurance seller, and an hour later, he came to the front of a three-story residential building.

I knocked on the door on the first floor, but I didn't hear any response from inside, so I pulled the latch and walked in.

Detective Liu walked around the first and second floors, did not see a single figure, did not hear any sound, and then strode up to the third floor, and just walked up the stairs, he heard the sound of a TV from above.

Detective Liu stepped forward step by step, knocked twice on the closed door, and shouted inside, "Hello, is anyone there?"

After half a minute, there was a sound of footsteps in slippers, and the door was quickly opened, and Detective Liu heard a very pleasant voice, "Someone, you, are you here to find Brother Feng?"

Anna poked her head out, revealing a face that people can't forget at a glance, Detective Liu's body trembled slightly, she was the girl in the photo!

"Well, yes, I'm looking for him," Detective Liu said along with the girl's words, he thought that he would find the boy's parents or relatives at most this time, but he didn't expect to see the object that the employer was looking for directly.

"Brother Feng is still in class, and he won't be back until almost evening, do you want to come in and sit for a while?" Anna said enthusiastically, completely defenseless against the strange man in front of her.

"Oh, then, I'll come back in the evening, and I won't bother you yet. Detective Liu excused himself, smiled kindly, and turned and walked down the stairs.

Anna glanced at the man's back in confusion, closed the door, and ran back to the couch to watch her TV.

As soon as Detective Liu walked out of this residential building, he sent an address to Ding Jiang on his mobile phone, remarked three words, and found it!

......

The bell for the end of class had already sounded, but none of the students in the second (11th) class walked out of the classroom, and their eyes were all fixed on Teacher Sun on the podium, with excitement and excitement in their eyes.

Lin Zifeng sat in his place, his face was light and light, and Tang Zhuojie next to him had been shaking his calves rapidly, looking up in the direction of Teacher Sun for a while, and pretending to be reading his book for a while, completely fidgeting.

On the podium, Old Man Sun turned out the standard answer to this quiz and began to review Tang Zhuojie's test paper while following the answers.

One of the ten multiple-choice questions was wrong, all the fill-in-the-blank questions were answered correctly, and then the next few big questions, Old Man Sun looked down one by one, except for one of them, a formula was written wrong because of a clerical error, basically there was no problem. And the last bonus question, Tang Zhuojie's side was blank, and Old Man Sun felt a little regretful after reading it.

He has done this extra question himself, which is indeed very difficult for students in the second year of high school, and this question itself is also excerpted from the national Olympiad question bank, even those top students who participate in the Olympiad may not be able to answer it.

When Old Man Sun saw this topic, he still had some expectations for Tang Zhuojie, because the latest Olympiad was about to start registration, and Tang Zhuojie, who was the first in mathematics in his grade, was naturally one of the seeded players. Old man Sun really hopes to see Tang Zhuojie solve this problem, which means that with his strength, he may be able to win a medal in the National Mathematics Olympiad.

After Old Man Sun finished his review, he sighed slightly, maybe the time for this quiz was too short, if he was given a little more time, he might be able to solve it, Old Man Sun comforted himself in his heart.

After deducting a multiple-choice question and a step score, Old Man Sun scored a high score of 95 points on Tang Zhuojie's test paper.

The students who had been waiting below couldn't help but exclaim when they saw the scores written by the red ink pen, "Tang Zhuojie is really amazing, almost a full score again." ”

The sound of admiration around him came, which made the uneasy Tang Zhuojie regain a little self-confidence, no matter how he said that he only deducted five points, could Lin Zifeng be able to answer all the questions correctly? Now he regrets it very much, how can he even miscalculate the multiple-choice questions, otherwise he will be more sure of the odds of winning.

Old man Sun put Tang Zhuojie's test paper aside and began to review Lin Zifeng's test paper. With the previous review, Old Man Sun already had some impressions of the standard answers, and began to sketch them directly on Lin Zifeng's test paper.

The multiple-choice questions are all correct, and the fill-in-the-blank questions also seem to be correct, the first big question, the second big question...

The more Old Man Sun looked at it, the faster he looked, and the more tense a nerve in his heart became, he seemed to find that there seemed to be no mistake on Lin Zifeng's test paper!

Until he finished reading the last big question, Old Man Sun still didn't find any faults, and even every step was written correctly, and there were no steps to deduct at all.

What surprised Old Man Sun the most was that Lin Zifeng actually did the extra points question later, he just saw the steps of solving this question yesterday, and now look at Lin Zifeng's answer, the first step, the second step, and the sixth step are exactly the same as the standard answers, and they have not fallen into the trap set by the questioner at all.

Old man Sun's hands holding the test paper began to tremble slightly, if his memory is not wrong, the score of this test paper should be a full score, plus twenty points of extra points, a total of one hundred and twenty points, a full twenty-five points more than Tang Zhuojie!