Gao Yang's provocation angered Professor Ma, who blew his beard, and Professor Ma returned to the blackboard, chalk flying, and wrote a topic about atomic physics on it: According to Xinhua News Agency, the world's first set of fully superconducting nuclear fusion experimental device (also known as "artificial sun") designed and developed by China has completed its first engineering commissioning. The following statements about "artificial suns" are correct ()

a．“ The nuclear reaction equation of "artificial sun" is %¥¥@#@ (ps: many symbols in the formula cannot be displayed)

b．“ Artificial Sun" nuclear reaction equation%¥#¥............

c．“ The amount of energy released by the artificial sun is calculated as %¥¥@#d." The formula for calculating the size of the "artificial sun" nuclear energy is %¥¥@#高阳几乎是不加思索的回答了:ac

"You kid must be blind." Professor Ma was not convinced, wiped out the test questions on the blackboard, and once again came up with another test question: 19. The following statements about the structure of atoms are correct

A. Thomson discovered the electron and proposed the theory of the nuclear structure of the atom

B. Rutherford revealed the composition of the nucleus through the study of α particle scattering experiments

c. Bohr's atomic model is essentially identical to the nuclear structure model of the atom

D. The limitation of Bohr's theory is that it retains too much classical physics

Gao Yang had already chosen the answer almost when Professor Ma's chalk fell: D.

Professor Ma's face changed, and he wiped out all the test questions on the blackboard again, and wrote again:

The following statement is true

a. Heavy nuclear fission releases energy, and light nuclear fusion absorbs energy

b. The half-life of a radioactive element is related to the physical or chemical state in which the atom is located

c. The ionization of the rays is strong, but the penetrating ability is so weak that it can only fly a few centimeters in the air

d. The maximum initial kinetic energy of the photoelectrons emitted in the photoelectric effect is independent of the intensity of the incident light

(Attached, please attach an introduction to the answer)

Gao Yang replied almost with his eyes closed: I choose CD. Analysis: Fission and fusion both release energy; The half-life has nothing to do with the physical or chemical state in which the atom is located; Among the three types of radiation produced by natural radiation phenomena, α rays have the strongest ionization and the weakest penetrating ability. The maximum initial kinetic energy of the photoelectrons emitted in the photoelectric effect is independent of the intensity of the incident light, but the material and the frequency of the incident light.

"It's still a bit level, boy, answer me one more question." Professor Ma's anger vanished, and he began to appreciate Gao Yang a little, and the student answered the question almost without thinking, and he was surprised by the confident look.

Another question appears on the blackboard: 17. As shown in the figure describing the curve of the average mass of nucleons in the nucleus in relation to the atomic number z, the following statement is correct:

A. Decomposing nuclei A into nuclei B and C may absorb energy

b. Combining nuclei D and E into nuclei F may absorb energy

c. Decompose the nucleus A into nuclei B and F to release energy

D. Combining nuclei F and C into nuclei B must release energy

"I choose CD prompt: because the average mass of nucleons B and C is less than the average mass of nucleons of A, when A decomposes into B and C, there is a mass loss, so nuclear energy is released, so A is wrong, and the same reason can be obtained that B is wrong, and C and D are correct." After Gao Yang answered the question, he was already a little impatient: "Professor, can you have some level questions, these things are too pediatric." ”

"Pediatrics, you dare to say that the problem I asked is pediatrics, okay, what an arrogant Gao Yang, I'm afraid that it will be difficult, and you won't be able to solve it." Professor Ma was almost angry.

Formulas appeared on the blackboard quickly, Professor Ma threw away the chalk after a dragon and phoenix dance, his expression was very proud, the problem he came up with just now was a difficult problem solved by last year's Nobel Prize winner in physics, and the answer was only known to a few physicists. That Nobel laureate happened to be Professor Ma's mentor.

"Gao Yang, let's solve it." Professor Ma lifted his glasses, full of energy, he could finally redeem his dignity as a professor.

Gao Yang frowned: "Professor, you are really good, you can even get this kind of question." ”

"Gao Yang, I don't believe you can solve this test, although I admit that your physics foundation is good, but you are too tender." Professor Ma was full of spirit, and it was clear that he wanted to embarrass Gao Yang.

"Hehe, Professor Ma, it should be you who is a little tenderer." Gao Yang said that, walked to the blackboard, chalk flying, and formulas and characters appeared on the blackboard.

The smile on Professor Ma's thin face suddenly froze, and there was not only one promise written by Gao Yang, but three, one of which was exactly the same as the answer in his heart.

"This ...... This...... How is it possible, how can you solve this test question and you can still write three completely correct answers. Professor Ma seemed to have seen a ghost, and his whole body suddenly trembled.

"Gao Yang, where did you get this answer, you must have downloaded it from the Internet, this answer can't be solved by you, I don't believe it." A student can solve an answer that only a Nobel laureate can solve, and no one will believe it.

Facing Professor Ma's suspicions, Gao Yang grinned: "Professor, if you don't believe it, you can come up with another question, as long as you can come up, I can solve it." ”

"Good...... Okay, I'll come up with another question, if you can solve it, I'm not a good professor, I recognize you as a teacher. "Professor Ma is highly respected and respected in the academic world, and today he was repeatedly provoked by a student, and the professor has lost his mind and is really angry with Gao Yang.

It was another burst of dragon flying and phoenix dancing, and Professor Ma wrote down an unsolved problem that he had been researching for many years on the blackboard.

The blackboard was full of symbols and formulas, and the students in the audience hugged their heads one by one: "Damn, what is the professor writing, why can't I understand it." ”

"It's strange that you can understand it, it is estimated that the professor has been mad with Gao Yang, and now he is making it difficult for Gao Yang to solve the problem that he can't solve, hehe, Gao Yang, this kid is also very powerful, he can make a doctor angry to this extent, this guy is a talent."

"Damn, what's wrong with Gao Yang? This kid's previous achievements can be described by a bad word, and today he actually solved a few difficult problems taught in a row, and they were all answered in a second, my good boy, this guy shouldn't have dropped his IQ after his head fell. ”

The students in the audience talked a lot, and they looked at Gao Yang like a monster.

Xiao Yun looked at Gao Yang intently, the guy in front of her was completely shocked today: "Strange, why is Gao Yang's physics and mathematics so powerful, could it be that he pretended to be before?" He doesn't give a damn about what is in books, and he's a genius in his own right. ”

Xiao Yun's eyes when he looked at Gao Yang were very different, the scoundrel he hated in the past was actually a genius, and this change was too big.

"Maybe, I shouldn't have done that to her before." Xiao Yun blushed and lowered his head, Gao Yang's talent impressed him, remembering that he had shown love to Gao Yang so many times before, and his attitude towards him, Xiao Yun was a little ashamed, and then remembered that Gao Yang kissed himself and attacked his chest again, Xiao Yun was angry and annoyed, ashamed and ashamed, and his face was as red as an apple.

Gao Yang glanced at Xiao Yun lazily, regardless of the crowd, and laughed: "Xiao Yun, why are you blushing, if you have a crush on me, please say it directly." ”

In the classroom, there was a burst of laughter, Gao Yang's thick face was the Gao Yang that the students were familiar with.

"You...... You. Xiao Yun blushed, gritted his teeth and looked at the classmates around him, his head hanging down again.

Gao Yang continued to flirt: "Hey, classmate Xiao Yun, you promised to be my girlfriend, you shouldn't be deceiving and being kind to me." ”

"I ...... When did I promise you. Xiao Yun was so angry that he almost burst into tears.

"You forgot, a few days ago, when you went to see me in the hospital, you promised me, and I kissed ......."

"Shut up." Before Gao Yang's words fell, after Xiao Yun yelled, he was already so ashamed that he didn't look for a crack in the ground to get into it.

"Damn, Gao Yang, this kid is really good, he really chased Xiao Yun into his hands."

"Damn, a flower is really stuck in cow dung, oh my God, open your eyes, I'm so handsome, I'm so gentle, why would Xiao Yun take a fancy to Gao Yang and ignore me, I'm so mulberry."

What was omitted after Gao Yang's kiss word, needless to say, from Xiao Yun's shy expression, everyone could guess it. Suddenly, some people envied Gao Yang, some people were jealous of Gao Yang, and most of them were hate.

Gao Yang, who was surrounded by envy, jealousy and hatred, was very proud in his heart.

"What is the noise, this is in class, and no matter how noisy it is, all of it will be demerited." Professor Ma was in a bad mood, he had already come up with the question, threw away the chalk, and waited angrily for Gao Yang to solve the problem.

"Gao Yang, please solve the problem."

"Yes, Professor." Gao Yang walked to the blackboard easily, and the chalk in his hand flew up, as happy as a cloud of flowing water in his peers.

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