"Senior Brother Baole, the reason why there are thousands of echoes of condensed aura is because different secret recipes of spirit billets correspond to different refining materials, and according to the different spirit billets and materials, you can't choose a single kind of echo pattern that condenses aura, you need to match and adjust. ”

When this sentence was spoken, an indescribable momentum appeared on Cao Kun's body, and that kind of mastery of the back lines made him not say anything to the point in his answer, and it was almost the same.

To be able to become the head of anagram science, Cao Kun is a top scholar in anagram science, and his knowledge of anagram is very exquisite, but it does not mean that his character must be above the level.

In fact, Cao Kun's strength has always been very small, and his character of retribution makes him hate Wang Baole who dares to beat himself violently and make himself embarrassed in the French military department.

Seizing the opportunity at this moment, he doesn't mind hitting Wang Baole hard and making him embarrassed in front of the master.

"I don't know if I say this, whether Senior Brother Baole can understand, if you still can't understand, then I can't help it, I suggest you, go back to the Wen School to listen to the class, don't indulge in the power of the head of the school all day long, this is not the right business! ”

Cao Kun's last sentence was domineering and even more reprimanding, and after speaking, he turned around and bowed to the old doctor, and then sat down.

Lin Tianhao smiled at Cao Kun on the side, and the heads of the other departments also looked at each other and did not speak, as for the old doctor, he knew that the heads of the Fa and Soldier Department did not agree, but he didn't bother to pay attention to the matter between these students.

"Do you have any other questions, if not, that's all for this time. With that, the old doctor stood up, ready to finish the lecture.

"Master, I still have a question!" Wang Baole breathed slightly rapidly, and there was light in his eyes.

If it had been another time, Cao Kun would have been sarcastic like before, Wang Baole would have stared back, but now that he was immersed in the sea of questions, the answer given by Cao Kun made Wang Baole feel like he had opened his mind in an instant, and many doubts related to the aura echo were solved in an instant.

This feeling even made Wang Baole feel that he seemed to be faster in deducing the formula, so after hearing the old doctor's words, he hurriedly spoke to Cao Kun.

"Senior Brother Cao, why does the blank back pattern number 31495 in the dictionary have different effects due to the different hours, different months, and even different air humidity!"

This problem, so that Wang Baole in the formula calculation, every time it takes a long time, even if the result is calculated, but still do not understand the principle, there are really tens of thousands of such blank echoes in the back lines without any effect, but in the depiction of back lines, and can not be missing.

"This ......" Cao Kun was stunned for a moment, Wang Baole's previous question, he thought it was simple, but now this second question, the difficulty jumps too much, especially when it involves blank echoes, which suddenly made Cao Kun hesitate, thought for a long time, and barely answered.

But as soon as he finished answering, Wang Baole spoke again in high spirits and asked a new question.

"Senior Brother Cao, in the annotations in the back text, the concept of a viewing instrument was once proposed in the 790,000 and 3rd Dao, and I have a little doubt about this viewing device......

"Senior Brother Cao, between the 900,000 and 910,000 Dao of the Hui Pattern, the water vapor rune has been added many times, I don't understand this very well, and I ask Senior Brother Cao to solve my doubts......"

"Senior Brother Cao, there is also a borrowing spirit ......"

In this way, his questions were one after another, getting more and more difficult, Cao Kun's forehead slowly sweated, and gradually his whole body was soaked, and he was secretly scolding in his heart.

He felt that Wang Baole must have done it on purpose, but he took the initiative to jump out before, and it was difficult to ride a tiger at the moment, and he couldn't help but feel his chest rising and falling, extremely anxious, and the feeling of being the head of the echo pattern, but not answering, made him crazy, so that as long as he heard the three words of Senior Brother Cao, he couldn't help but tremble, and when he looked at Wang Baole, his eyes were bloodshot.

Lin Tianhao also gradually frowned, he couldn't answer many questions, as for the other scholars around, they were all very surprised at this moment, especially after seeing Cao Kun constantly wiping his sweat, their surprise was even greater.

Even the head of the courtyard looked at Wang Baole meaningfully, seeing that Cao Kun was already exhausted, he smiled dumbly, took the question, and spoke lightly.

"Wang Baole, in your last question, you proposed to borrow spirits, in fact, you understand that there are some mistakes, the real borrowing of spirits is to use the aura of heaven and earth, but also with the help of the aura of other magic weapons, and even all things in heaven and earth, mountains and rivers, and even sentient beings, everything can be borrowed!"

As soon as this sentence came out, Wang Baole only felt a bang in his mind, that kind of feeling of enlightenment, and in an instant, many obstacles on the back lines were directly disintegrated, and he only felt that his thoughts were extremely transparent.

"Thank you for your suggestion, the disciple has one more question......

Wang Baole was excited, turned his head to the head of the courtyard and started his question offensive, asking one question after another, at the beginning of the head of the courtyard the answer was very easy, but gradually his forehead was also sweating.

As for Cao Kun, he was also secretly frightened at the moment, and he was very glad that the head of the court had just taken over Wang Baole's question, otherwise, he would be embarrassed to the extreme and make a fool of himself on the spot, after all, he had never even heard of what Wang Baole asked later.

And now the question raised by Wang Baole is getting more and more difficult from shallow to deep, because the back pattern he has mastered is the deduction of the formula, which is different from everyone else, to a certain extent, the deduction and calculation of the formula in the past 20 days have made Wang Baole himself not very aware of the extent to which he has mastered the back pattern.

But as he continued to deduce and calculate, he gradually discovered that the obstacles that hindered his further mental arithmetic were his lack of some basic knowledge of back lines, as well as the contrasts and differences that he found through calculation formulas, which were simply difficult for others to reach.

Now with the help of this opportunity, first Cao Kun, and then the head of the courtyard, their answers made Wang Baole's mind as if oil had dripped into the running machine, faster and faster, with the collapse of barriers, his deduction speed for the formula, also rose wildly.

"Thank you Zhangyuan, I have another question, you just said that there will be a cross between the back pattern and the back pattern, but I found that if you want to get the speed back pattern, you can also use the wind back pattern, you can also use the kinetic energy back line, there are many ways, how can you overlap and make the effect better?"

When Wang Baole asked this question, the head of the court couldn't help but wipe the sweat from his forehead, and when he looked at Wang Baole, there was a trace of helplessness in his eyes.

He smiled bitterly in his heart, feeling that the pressure was too great, but in the face of the student's question, he couldn't help but answer, but Wang Baole's question was getting more and more difficult, and now this question was beyond the scope of what he could answer, so he quickly took out the sound transmission ring and called the goatee and others from the law and soldier department.

In the process of the arrival of Goatee and the others, the surrounding scholars were already stunned by this scene, even if this was the lecture hall of the head of the courtyard, they couldn't help but start talking.

"This Wang Baole, why are there so many problems......

He actually stopped the head of the courtyard...... In the end, he is the head of the spirit stone or the head of the back pattern. ”

Under the whispered discussion of everyone around the world, Cao Kun also felt extremely stressed, and there was an inexplicable crisis.

Not long after, when the goatee and the teacher of the law and military department arrived, they all looked at Wang Baole with strange expressions, and on the way they heard about this place, they all sat down at this moment and began to answer.

Seeing the appearance of the savior, the head of the courtyard was also relieved, so he returned to his previous calm appearance, and looked at everyone with a smile, but he quickly ...... When Wang Baole's questions came out one after another, and the difficulty leaped over and became bigger and bigger, even Goatee and others needed a long time to discuss with each other before they could give an answer.

The root of it is a million back lines, which are matched with each other, not to mention that they can be expanded a hundred times, but also almost the same, so that the various changes produced by each other, few people dare to say that they can master all of them.

And Wang Baole's formula directly broke the recitation, so that the million back lines and a hundred times the change were within the scope of his formula, so his problem was to jump the number of back lines and directly hit the essence!

In the end, when they finally discussed the answer and told Wang Baole, Wang Baole slapped his thigh excitedly.

"I understand, so that's the case, thank you to the head of the academy, thank you to the department master, thank you to the teachers!"

"I have one more question......"

"If you want to make a magic weapon that can stimulate the wind blade, you need two kinds of hot and cold back lines to form a cycle, which are carved on different spirit stones, and these two kinds of back lines are composed of a large number of basic back lines, many similar, how to arrange back lines, in order to be carved on a spirit stone, borrowed from each other. Wang Baole's eyes were shining, at this moment he had long forgotten that this was the lecture hall of the head of the courtyard, in his opinion, this was a paradise for himself to solve his doubts and improve his mental arithmetic speed!

It's just that as soon as his question came out, everyone who was already under great pressure gasped one by one, their eyes widened, and their minds roared, especially the teacher of the Huiwen Academy, who couldn't help but lose their voices.

"This is the knowledge of the advanced anagram of the Upper Yuan Island Hobing Pavilion, you ...... You're going to start working on this now?"