ABC International Mathematics Competition, although the name is an international competition, the test paper is also written by the United States. For more up-to-date chapters, visit: ШЩЩ.(7)(9)XS.сОМ.

But it is also transmitted to Huaxia by fax or the Internet, and the exam time is different from that of the United States, obviously there will be some people in the middle.

As a professor of mathematics at Huaqing University, Ding Hanhai is one of the people who handled it.

Although Ding Hanhai did not make a copy of the test paper, with his research on mathematics, he only read the test questions once, and many of the questions are also clear to the 'chest', maybe there will be some errors in the data, but the question type, I still remember it.

"Okay, you kid wait a while, I'll take a picture and send it to you. Ding Hanhai said with a smile on the phone.

After about an hour, Ding Chen received a test question written with a pen and detailed steps to solve the question.

Ding Chen held his mobile phone with joy and studied it question by question, frowning for a while, nodding for a while, looking like this.

Obviously, I have a deeper understanding of the difficulty of the ABC International Mathematics Competition.

When he saw the last 100-point additional question, Ding Chen couldn't help but be stunned.

All the previous questions add up, and it is estimated that it is only 100 points, and a single additional question is directly 100 points.

This couldn't help but make Ding Chen suspicious.

But soon, he laughed, "Well, it turned out to be Goldbach's conjecture." ”

"If anyone can prove success, let alone the first place in the ABC International Mathematics Competition, it is more than enough to win all the mathematics medals in the world. After Ding Chen finished speaking, he didn't pay attention to the last additional question.

......

Since he didn't have to go to class in the afternoon, Zhang Xingxing didn't plan to review, thinking that he hadn't watered the fruit trees and tea leaves on the mountain for a day or two, Zhang Xingxing was worried for a while.

Well, in fact, Zhang Xingxing's heart is like this: all the tea and fruits are put at home, and he is about to open a company again, and the money is not enough to 'spend', so he has to grow some tea and sell it.

After Zhang Xingxing bought many buckets and bags, he took the big eggs and went all the way.

Soon came to the 'door' of Liang Tao's house, and as usual, said hello to Liang Tao, and continued to rush towards the mountain.

Today's Liang Tao seems to be in a very good mood, and he is always smiling on his face.

Zhang Xingxing came to the mountain, took out his mobile phone, set up the bucket, and one after another hundred 'flowers' of clear springs were submerged into the bucket.

Then, as usual, Zhang Xingxing began to water carefully.

Every time he scooped down, looking at the branches and leaves that kept going up, Zhang Xingxing's mood was also very good.

After so many days of cultivation, although the immortal seeds have not yet grown into trees, they have also become large-scale.

Especially the tea fairy seeds, gradually turned out of the small shoots, I am afraid that it will not be long before the leaves can grow, and when the time comes, you can taste a taste of fairy tea.

After the tea is watered by the hundred 'flowers' spring and grows, drink it in the stomach, you can be full of fragrant, it is very delicious, if you replace it with fairy tea, the taste is ...... Just thinking about it makes people feel excited.

Since today is a bumper harvest, Zhang Xingxing did not skimp on his hundred 'flowers' clear spring, and the whole two buckets were all watered.

However, on the other hand, the harvest is also very rich.

Looking at more than a dozen bags of tea and a few bags of fruit on the ground, Zhang Xingxing's whole person was happy.

Pick up a freshly picked apple and shove it into your mouth.

"Click!"

Crisp and sweet, the 'honey' juice is splashing, especially because this apple, all cultivated by oneself, has a special taste and sense of achievement, in the heart of the 'rippling'.

Seeing that Zhang Xingxing was eating so happily, Da Dan stretched out his tongue, 'licked' and 'licked' his chin, and finally couldn't help but open his mouth and swallow an apple in front of him.

"Poof!"

The big egg spit out the jujube core and shouted, "Boss, the apple is not delicious, or the dragon's toe bone is better." ”

Speaking of the dragon toe bone, the big egg seemed to be starting to reminisce about yesterday's taste, and saliva slowly hung on his chin.

Zhang Xingxing, who was originally relishing because he ate apples, suddenly spit out all the apples he had just been about to swallow.

As long as he thought of the stench in the bedroom yesterday, Zhang Xingxing felt a little sick to his stomach, it was simply an inhuman smell.

However, he glanced at the poor big egg and said, "I'll give it to you later." ”

After hearing this, the big egg wagged his tail happily.

Zhang Xingxing didn't want to be in the greenhouse, so he took out the dragon toe bone. In a confined space, the smell is terrible.

After taking out his mobile phone, aiming at the tea and fruits packaged on the ground, scanning and putting them in his bag, Zhang Xingxing instantly felt full of confidence.

"Huh, dragon eggs!"

Zhang Xingxing quickly noticed the golden 'colored' dragon egg in the bag.

I can't help but fantasize that I am standing on top of the five-clawed golden dragon with my hands on my waist, majestic and heroic, shuttling in the clouds and mist, like the hero in a mythological story, with an endless demeanor.

Zhang Xingxing smiled and finally clicked on the screen.

Bite!

Hint: Do you want to take out the dragon egg*1.

Be!

Then, Zhang Xingxing's eyes widened early, ready for the appearance of a giant dome as big as a mountain in front of him.

After all, even a dog's egg is as tall as a human, and the dragon egg is a little bigger, which is acceptable.

However, in the next second, Zhang Xingxing was stunned.

What about dragon eggs?

Why is it gone?

Zhang Xingxing hurriedly opened his mobile phone and found that there were indeed no dragon eggs in the bag.

In other words, the dragon egg was really taken out by itself.

However, he disappeared in front of him.

Zhang Xingxing made a bold guess, and the dragon egg ...... Ran away!

After this speculation, Zhang Xingxing hurriedly looked around, but he didn't find anything.

Zhang Xingxing lowered his head and sighed, the bitterness in his heart, the dream of Xianxia standing on the top of the five-clawed golden dragon, is gone.

But at this moment, Zhang Xingxing found that there was an inconspicuous, one-yuan coin-sized golden egg on the ground.

Zhang Xingxing picked it up suspiciously, and just stroked it with his hand, it was soft and felt very good.

At this time, the golden egg suddenly shook, a slight crack appeared, and then countless dazzling rays of light burst out into the distance.

Zhang Xingxing instinctively closed his eyes.

When the light gradually dissipated, Zhang Xingxing saw a small insect covered in golden 'hair' and the size of a fingertip, slowly crawling out of the golden 'colored' eggshell.

Because Zhang Xingxing has cultivated the "Mortal Immortal Cultivation Technique", his eyesight is many times better than ordinary people, and he can even see ants on the ground in the distance, stomping his hands and feet.

For the appearance of the little golden 'hairy' insect in front of him, even its 'hairy' hair can be seen clearly.

At this time, the golden 'hairy' little insect was using its cute black eyes to observe the surrounding environment with curiosity, and finally set its eyes on Zhang Xingxing.

Open her mouth, her baby-like little 'lips', smile and make a crisp 'girl' voice: "Mom!"

Zhang Xingxing's eyes widened: "!"