Chapter 41: Mathematical first test, but so

　　　　 The examination room for the preliminary examination of Mathematical Olympiad is in "Nongda University".
　　 The car used Yucheng No. 1 Middle School and drove all the way to the new campus of Agricultural University. Half an hour later, Lu Li and his entourage had arrived at the Agricultural University campus.
　　 At this moment, there are already a dozen school buses parked in the parking lot at the entrance of the Agricultural University.
　　 Students from all counties and districts of Yucheng, as well as Yucheng No. 1 to No. 7 high schools, a total of 20 high schools, more than 200 students, gathered on the campus of Agricultural University.
　　 Lu Li sat in the car and glanced at it. There were groups of students everywhere.
　　 Checked the admission ticket, counted the pen, ink and drawing tools, and Teacher Yang Lin organized the students to get off.
　　 Just getting off the bus, Lu Li saw some students around who were competing and looked over curiously.
　　 Then...
　　 "It's one of China! Don't read it! There is no need to pay attention."
　　 "Yucheng No. 1 Middle School shaved their heads last year. They are not threatening, so they really don't need to look at it."
　　 whispering, the students who had watched the contest turned their heads and ignored Lu Li.
I go! Was it discriminated against in Yucheng No. 1 Middle School?
　　 Lu Li curled the corners of his mouth, a little speechless.
　　 "Have you heard? Did you see it? We were wiped out last year in China, and we are now looked down upon. It's up to you whether you can raise your eyebrows and be shameful."
　　 Teacher Yang Lin took the opportunity to cheer everyone up, and then pointed to the sign in front of him, "First check your admission ticket to find the respective examination room."
　　 Lu Li and the others hurriedly got up, walked to the notice board, and looked for their respective examination rooms.
　　 "I'm in the exam room on the third floor."
　　 Liu Qin found his place in the examination room, turned his head to look at Lu Li, and asked, "What about you? Which examination room are you in?"
　　 "Found it! The third examination room on the second floor."
　　 Lu Lichao Liu Qin spread both hands, "We are not an examination room."
　　 This kind of competition, all participating students in the city disrupted the arrangement of the examination room, which is also normal operation.
　　 "I'm also in the first examination room on the third floor, the same examination room as Liu Qin.
　　 After Dong Ke found his position, he came over and interjected.
　　 It's just... Liu Qin didn't respond to him at all.
　　 Lu Li smiled and nodded, but he slandered in his heart: Who cares which examination room you are in? What are you coming here to interrupt? I like being a light bulb so much, so I buy one on my head!
　　 Dong Ke was slightly embarrassed and turned to leave.
　　 "Go! Let's get acquainted with the examination room first."
　　 Lu Li stretched out his hand towards Liu Qin and gestured.
"Ok!"
　　 Liu Qin walked towards the examination room with Lu Li.
　　 Lu Li originally planned to send Liu Qin directly to the third floor examination room, but when he reached the second floor, Liu Qin took a step first. He first went to Lu Li's examination room and took a look. Then he turned around and went up to the third floor with Lu Li.
　　 The smell of dog food made some candidates next to me sour, um... lemon.
　　 When Lu Li returned to the examination room on the second floor, the group of candidates waiting outside the examination room looked strange.
　　 "Dude, that...your girlfriend?"
　　 Lu Li was leaning on the railing of the corridor waiting for the test, and a man with glasses leaned forward and asked a thief.
　　 "It's a classmate!"
　　 Lu Li's face was full of stern expression, "How can we, such a good student with good academic performance, fall in love? How can we have a girlfriend?"
"I understand!"
　　 The man in glasses smiled strangely, "It's definitely a pure relationship between men and women. You are just a normal relationship between classmates. So what... brother, which school? Get to know?"
　　 "One Chinese."
　　 Lu Li answered casually.
　　 "Oh, one in!"
　　 The man with glasses nodded politely, then...turned around and left.
　　 "Huh? What do you mean?"
　　 Such a posture of respectfulness before reprieve made Lu Li a little surprised. Change your face so fast?
　　 "Oh! Originally, I saw you look calm and relaxed, and I thought you were a strong enemy when I thought you were a strong enemy."
　　 The man with glasses is full of sincerity, "Now that I know that you are a one in one, then I can rest assured."
　　 Don't worry about peat!
　　 Lu Li's face was depressed. Is the reputation of Yucheng No. 1 Middle School already so unbearable?
　　 The invigilator came soon.
　　 opened the seal at the entrance of the examination room, opened the door, and the invigilator signaled everyone to enter the examination room.
　　 "Students, this examination room is monitored. I don't need to emphasize the discipline of the examination room."
　　 The invigilator put the sealed test paper bag on the podium, first emphasized the discipline to everyone, and then waited for the formal test to start.
　　 As soon as the preparation bell rang, the invigilator issued the paper.
　　The preliminary test of the 2011 National Mathematical League officially started.
　　 finally started, I can’t wait!
　　 Lu Liduan sat on his seat, spread out the test paper, first wrote his name, and filled in the test admission ticket number. Then he began to look at the test paper.
　　There are not many questions, there are only eight fill-in-the-blank questions and three answer questions. The total score is 120 points.
　　 glanced across the test paper, not forgetting that Lu Li remembered all the test questions on the test paper instantly.
　　 This question... I have done something similar.
　　This question...I went and changed the number, it's too simple!
　　This question...just changed one direction, simple!
　　 Once I saw the test paper, Lu Li had only one feeling, this is the first test of the Olympiad? How is it so simple?
Lu Li is very familiar with every question on the 　　 test paper, and he has done similar questions.
　　 Problem-solving ideas and methods are straightforward!
"A number a is randomly selected from 1, 2, 3...10, and a number b is randomly selected from -1, -2, -3...-10, then the probability that the square of a + b is divisible by 3 is ()."
　　 Isn’t it just arrays and probabilities~EbookFREE.me~ How simple? A few formulas are listed, and the answer is quickly calculated: 37%.
"Put the 6 numbers 2,0,1,9,20,19 in any order in a row and form an 8-digit number (the first digit is not 0), then the number of different 8-digit numbers will be () ."
　　Sample, do you think I can’t recognize you after changing a few numbers?
　　 The pen tip is swiped, and the answer comes out: 498.
　　Solve the problem! Have fun solving problems!
　　 The test questions were solved in Lu Li's pen, completely effortless, not to mention how relaxed and happy.
　　 There is no difficulty at all!
　　 I wrote all the way, unknowingly...I finished the last question.
　　 Is this... over?
　　I'm fighting hard, and I'm waiting for you. I practiced the dragon slaying skills hard, and the result...you gave me a water snake?
　　 Passionate, and heartily, unexpectedly...stopped!
　　 The moment the volcano was about to erupt, it was blocked back. This made Lu Li feel uncomfortable.
　　 The wave of knowledge surging in my mind, the spark of inspiration blooming in my mind, has nowhere to release for a while.
　　 drew their swords and looked around, the heroes shackled!
　　 Under the pen tip, there is no more question to do!
　　 Lu Li put down the ink pen in his hand, and sighed: The Olympic Mathematics preliminary contest, but so!
　　 turned his head and took a look, but found that... the man in front was pale and sweaty. The the left has frowning frowns and a miserable face.
　　 The man with glasses who talked to Lu Li before also frowned, his face was solemn, and the water-based pen in his hand trembled slightly.
　　 It's obviously very simple!
　　Why are you like a big enemy?
　　 Is I too strong? Or are you too bad?