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After more than ten days, despite having rich meals every day, Yi Jie still lost a lot of weight, and her chin became visibly sharper.

During the day, I continuously receive the knowledge from Teacher Xun. At night, I not only have to complete the homework assigned by Teacher Xun, but also sort out the content of the tutorial book. It is common to take a break at one or two o'clock. At Yi Jie's current speed, it will be completed in about three months. By then, I will find a good artist to edit the layout and modify it, and it will be released after the ASR competition is over.

Everyone around her saw how hard Yi Jie worked, but they also knew that she was busy with work, so they could only feed her as much as they could every day. Not only did Aunt Cui improve the nutrition of the family's meals, but Grandma He also made soup every now and then and sent it over. Even the other elders heard about it and sent a lot of brain-boosting food. Yi Jie digested it well, but Pei Yanan, who was eating with her, had a nosebleed because of the excessive food and never dared to eat the food again.

The exam is on the 15th, so the courses before the preliminary round end on the 14th. Teacher Xun taught the two of them separately.

"Xiao Jie, as long as you keep a good attitude, passing the preliminary league is a sure thing, and you will also have a chance to compete in the finals, so don't have too much psychological pressure. The reason why I have been suppressing you for the past half month is that I am afraid that you will be too anxious. In fact, you are learning very well. You are a talented child in mathematics. The teacher is waiting for your good news."

"Thank you, teacher. I will try my best!" In fact, as early as the next day, Yi Jie discovered that the difficulty of her practice questions was much greater than that of Pei Yanan, which meant that Teacher Xun did not set questions for her according to the level of the preliminary competition. She probably guessed what Teacher Xun meant, so she had no aversion to Teacher Xun's usual strictness, because her journey did not stop at a CMO preliminary competition.

"As for you, cheer up and do well in the exam. All I ask of you is to let me pass the preliminary round. I don't dare to expect anything else." Teacher Xun said to Pei Yanan with a stern face.

"Okay... okay." Pei Yanan's heart was filled with excitement. After tomorrow she would finally be free!

On the day of the exam, the guard drove Yi Jie and the other person to the exam venue early and found their respective exam rooms.

The wait was not long before the exam began. The three-page test paper had a normal amount of questions and the time limit was four and a half hours to complete.

Thanks to the sober pills, Yi Jie always had a clear mind no matter what exam she took. During this period of hellish training, the questions in the preliminary round were as easy as high school math problems for Yi Jie. She wrote smoothly without any pause.

The test paper was completed and there was more than an hour left before the end of the exam. Yi Jie checked the test paper three times and handed it in early after confirming that it was correct.

There were many geniuses taking part in the CMO, and it was not uncommon for Yi Jie to hand in her paper early, so the invigilator did not say much.

After waiting outside the examination room for an hour, I saw Pei Yanan's cheerful figure. The first time she saw Yi Jie, she ran over and excitedly said that she had basically finished all the questions and that there would be no problem in the preliminary round.

Pei Yanan's suffering was over, but Yi Jie's was just beginning. She couldn't relax even after the exam. Before the results came out, she stayed in her room and reviewed all the test papers and tutoring materials that Lao He had sent her. The competition was important, but her own duties could not be neglected either.

Five days later, the results of the CMO preliminary round were announced on the official website. The two passed without any surprise. Yi Jie took the highest score in the preliminary round and topped the list, while Pei Yanan passed at the bottom. Yi Jie was not surprised, as Chi Chi had told her the result as soon as it was announced.

Grandma He prepared a small celebration banquet for the two of them, praising them for their promising future and intelligence. In half a month, Yi Jie had become familiar with the He family, and the dinner table was full of lively conversations. Pei Yanan, contrary to her usual behavior, ate the meal in a gentle manner, unlike her usual careless and resolute appearance.

All students who passed the preliminary round had to participate in a one-month winter camp. The day after the results came out, Yi Jie and her partner followed the main group to leave Beijing and arrived at the Chunye Camp in Lucheng, Northeast China. Two guards followed quietly behind.

The team leader is the very responsible coach Su from the IMO Youth National Team. The team of 60 people was divided into three teams. Yi Jie and Pei Yanan were arranged in the same team, and the captain was Cheng Shiwei, who was years old this year.

The model of the winter camp is very simple. In the morning, the coaches give unified lectures. In the afternoon, there is free activity to feel the charm of nature together. In the evening, there is group discussion time for everyone to discuss, learn and make progress together.

Because Yi Jie ranked first in the preliminary round, many people came to her for discussion every night. Through the targeted teaching of her coach and the communication with a group of talented friends, Yi Jie's thinking was greatly broadened and she also clearly recognized her own shortcomings.

For example, Qiao Min, who ranked second in the preliminary round, has been a famous child prodigy since childhood. He skipped grades several times and is now a senior high school student at the age of fourteen.

Yi Jie's team leader Cheng Shiwei is equally extraordinary, having already won various competition awards except CMO. Participating in CMO is just the icing on the cake for his academic experience.

There are many people like this. What hurts Yi Jie the most is that her ability to absorb new knowledge is completely inferior to that of a truly talented young man. Without systematic help and the strict and precise training of Teacher Xun, Yi Jie would not be able to take first place in the preliminary round.

Therefore, she could only work harder to make up for the gap. During the free time every afternoon, Yi Jie stayed in the barracks and practiced hard. She could do a question over and over again for seven or eight times, and tried to solve it in different ways every time. She didn't just rely on the ideas provided by the experts who practiced the questions. She would try to figure it out on her own and was good at integrating and applying the knowledge points that Teacher Xun and Coach Su had said to solve the questions. Pei Yanan lived in the same tent with her, and he couldn't pull her out several times, so she could only go for a walk by herself.

Unconsciously, Yi Jie no longer relied on the directions given by the experts who practiced the questions. She would subconsciously block them and solve the questions on her own. This would undoubtedly take more time, but Yi Jie was happy with it because she would get a great sense of accomplishment every time she completed a question.

Yi Jie became the undisputed queen of the entire camp. When her reputation for diligence reached Coach Su's ears, he talked to her.

"Yi Jie, you don't have to be so tense. Learning and communication are important in winter camp, but you also need to learn to relax appropriately. Look at the great environment around us. Everyone is having fun in the afternoon, but you, on the other hand, lock yourself in the tent every day and study non-stop." Although Coach Su blamed her, he was actually very satisfied with Yi Jie. Having talent and hard work are the hallmarks of a successful person.

Yi Jie knew that her coach was worried that she would get sick from being bored, so she had to promise herself that she would go out for some fresh air every few days. In fact, with the help of the mint candy, Yi Jie didn't feel tired at all, but instead had endless energy.

Having just finished solving a big geometry problem that day, Cheng Shiwei, as the responsible team leader, urged Yi Jie to go out of the camp for some fresh air.

There was no other choice but to walk around the surrounding woods with Pei Yanan. Pei Yanan had already gotten to know this place thoroughly over the past ten days and was actively introducing it to Yi Jie.

"This forest is not very big, it should be artificial forestation. The mountains behind are all protected, so no wild animals can enter the forest. Everyone often has picnics, catches fish, and grills fish by the stream over there. By the way, there are also wild fruits and mushrooms in the forest. Coach Su forbids picking them, fearing that students will have problems if they eat them.

If you want to eat them, I can help you pick them. I was taught to identify these things in the army, so I know which ones are poisonous and which ones are not. "

The air in the forest was very fresh, and the fallen leaves made a rustling sound when stepped on. Yi Jie happily identified many edible wild fruits and mushrooms with Pei Yanan. It's never a big deal to have many skills, because who knows if you will use them one day.

After walking around the forest, they came to the protective layer of the mountain. There was a small sentry box under the protective layer where a forest ranger lived. When the ranger saw Yi Jie and the others, he urged them to leave quickly.

Yi Jie and the others did not stay long to cooperate with the work. They picked a bunch of wild flowers nearby and went back home. It must be said that the vitality near the mountains is stronger. In November, there are still many fresh and tender unknown flowers blooming at the foot of the mountain.

Late at night, everyone fell asleep except Yi Jie who was still writing the tutorial book.

"Roar!"

In a trance, Yi Jie seemed to hear the unclear roar of a tiger. She patted her head, thinking that she might be hallucinating because she had been studying for too long.

After turning off the lights, Yi Jie crawled into her sleeping bag and prepared to rest.

"Roar!" The sound came again, and Yi Jie stood up suddenly. This time she was sure that she had not heard it wrong. It was clearly the shrill howl of a tiger. After taking the powerful pills, her five senses had been enhanced. Coupled with such a long period of physical training, she had a big breakthrough and was much more sensitive than ordinary people.

"What's wrong?" Pei Yanan's perception was also very strong and he heard the movement from Yi Jie's side.

"Shh, close your eyes and listen carefully." Yi Jie put her finger to her lips.

Pei Yanan closed his eyes and tried to distinguish for a while, then suddenly opened his eyes and said, "It seems like there is a tiger roaring!"

"Absolutely. It's already two o'clock in the morning. Are there poachers hunting tigers while everyone is asleep?" Yi Jie raised the electronic watch in her hand to check the time.

Pei Yanan pursed her lips and said, "This is the outskirts of Lucheng. The mountain range behind the Chunye Forest belongs to the Jinding Mountain Group. It is a place where key protected wild animals gather. The country has control around it, and no poachers should be able to enter."

"What if, I mean, what if the forest ranger was turned against us?" Yi Jie said in a calm voice.

Pei Yanan's eyes flashed with panic: "If the forest rangers are turned against us, the consequences will be disastrous."

Forest rangers are equivalent to forest policemen. They are part of the establishment and have gun licenses when necessary. They are an important line of defense for wildlife protection. If there are loopholes in this line of defense, the mountains will become a paradise for poachers!

"We can hear the roar of a tiger, which at least means that the crime scene is not far from us. I will notify the guard now. Xiaonan, you report to the superiors and arrange for support. We will investigate first to see if we can find any clues." Yi Jie dialed the guard's hotline with her watch.

"No problem." Pei Yanan also took out the military satellite phone that he kept close to him.

The guard who had been lurking near the camp rushed to the woods and joined Yi Jie and the others. After Yi Jie explained the situation, the four of them headed towards the forest defense line.