"Bang Bang..."

For a while, the classroom burst into fierce applause.

These applause are enough to show that everyone is really happy and convinced.

In this regard, Yun Sangyu was also a little relieved.

It's not in vain that I wasted so much saliva.

However, just because someone understands doesn't mean everyone can understand it!

For example, Du Fei.

"Sangyu, what do you mean? Your formula..."

Ahem.

It can only be said that a scumbag is a scumbag, and it is a dimensionality reduction blow with the top students.

Fortunately, Yun Sangyu has good patience:

"The formula used is very simple, a Lorentz force provides a radius expression for the centripetal force, and then substitutes two different radii into it, and the first question of this problem can be solved.

With the basis of the first question, the second question is often inspired and breakthrough, at least the image of the particle motion should be relatively clear..."

After a lot of words, Du Fei finally seemed to understand.

Even if you don't understand it, you can't show it, isn't that stupider than a pig?

Fortunately, the class bell rang at the right time.

All the students who came around could only go back to their seats first, and Yun Sangyu's ears were completely cleared.

.......

Time flies like a white horse in the blink of an eye.

There is still a full week before the college entrance examination.

It can be said that all the senior high school students in the school are nervous, and even a few students are nervous to go to the hospital for infusion.

Yun Sangyu is probably the only one who is calm and comfortable, three meals a day as usual, punching in the canteen on time, and then going to class, and practicing at night, he is not tired at all, but full of energy.

Even Du Fei's classmates are all very good, they can't sleep enough every day, they can't eat well, and their dark circles are no different from pandas.

Whenever I go to the cafeteria to eat, I have books in my hands, and I don't leave my hands.

From time to time, I also sigh, like now:.

"Sang Yu, why aren't you in a hurry at all?"

Yun Sangyu drank water with a cup in his hand:

"If it's urgent, then everyone is in a hurry?"

That being said, but....

"Sang Yu, don't you know how much pressure we scumbags have?

Hey, too, in the last mock exam a few days ago, your grades were better than Qin Ruiheng's, and now you are the highest score in our class, how can Xueba know the mood of our scum?"

As he spoke, he sighed again.

If it is known, Yun Sangyu only spent half a month to learn all the subjects, and he has mastered the essence of the subjects, and he has been the first in the class for three years, I don't know what he will be shocked into?

This is simply an existence against the sky!

Still human?

Ahem.

"Don't worry, tell me if you don't understand anything."

As soon as Yun Sangyu's words came out, Du Fei's two eyes instantly lit up:

"Really?

Wow, I know that you are the best to me!"

Probably, that's what I'm waiting for.

What else can Yun Sangyu say?

When Duffy brought the question over, of course, he explained it carefully and seriously.

"Bell bell bell ~"

The last class in the afternoon finally ended.

Yun Sangyu also just finished explaining.

"Let's go, let's eat."

Du Fei replied weakly:

"I still won't go, I'll brush up on the questions and go back to the dormitory to eat instant noodles at night."

Yun Sangyu disagreed from the bottom of his heart:

"You're like this, before the test starts, your body collapses first."

Belch.

Du Fei was entangled:

"Shall I go, then?"

Yun Sangyu laughed:

"You can only eat when you go, and you can continue to study when you are full, right?"