How to buy data if your mobile phone has no data?

First. Here I use a mobile number as a demonstration, edit 10086 and send it to 10086.

Second. According to the SMS prompt, purchasing traffic is a business transaction, so send 2.

Third. Then follow the text message prompts to send 202. Then send 202007.

Fourth. We want to enable traffic, so we send 20200701.

Fifth. Reply to the QR to purchase successfully. Amidst the wails, the math teacher walked in with a stack of test papers.

It seems that because of the cold weather in winter, the physical education teacher caught a cold.

So it became two math classes and a test at the same time.

The math teacher’s name is Ou Dao, a very mathematical name, with black-framed eyes all year round.

Papers are being distributed one after another.

As a poor student, Su Mu reluctantly took out the mathematics reference materials and wanted to try his luck to see if he could find the original question.

"Ding! I checked the math questions, math points +1, current points 1/100, level: Level 1"

Suddenly, a voice came out of my mind. He was so startled that he almost fell off his stool.

The tablemate Yan Xiaoke on the side couldn’t hold back her laughter.

Ou Dao glared at Su Mu fiercely.

"?..."

Su Mu's eyes widened, a little in disbelief.

"What the hell is this? Is this a system? Is there really such a thing as a system?"

Su Mu continued to flip, and the same sound appeared again.

"Ding! You checked the math questions, math points +1, current points 2/100, level: Level 1"

He just glanced at it and actually increased his points. ?

Su Mu felt that his mind was clearer.

These unfamiliar mathematics questions seem to be somewhat familiar.

He became more and more excited.

These are the changes that really appeared before his eyes!

Su Mu flipped through the book faster and faster, and his points accumulated more and more. It was not until Ou Dao came over and stood in front of him that he realized and quickly took it back.

At this time, his points have reached 81/100.

He did not panic, but continued to check the questions on the test paper.

Finally, the system received a new prompt sound.

"Ding, your math points are enough, level: Level 2, current points are 0/1000!"

At this moment, Su Mu seemed to be enlightened. Mathematics problems seem to have become friends for many years!

He is!

I understand!

I understand! !

I actually understand it! !

Su Mu's heart suddenly burst into tears, and he felt that all the hardships had come to an end.

As if to test his results, Su Mu's mind was completely silent on the test paper. This was a scumbag's desire for knowledge.

Time passed bit by bit, and even Su Mu himself didn't notice it.

Unfortunately, although his mathematics has reached Level 2, there are still some questions that he cannot solve.

"Ding..."

This time it is not the system's prompt tone, but the bell for the end of get out of class.

This was the first time that Su Mu felt that time passed so quickly.

The two hours that were once so long still left him feeling a little unfinished.

Is this what it feels like to be a top student? He thought silently.

Su Mu felt that he should have scored 103 on this test paper.

Because he didn’t know the questions he didn’t know.

As for those simpler questions, Su Mu had a kind of mysterious confidence.

The answer he came up with must be the correct answer!

......

"I'm going to study hard."

Suppressing the excitement in his heart, Su Mu corrected himself