Because the college entrance examination mathematics is to test these eight books.

For this reason, in the past few days after Su Yan possessed this body, he basically finished these eight compulsory books plus the college entrance examination questions of the previous five years.

She took the test paper that Ji Xingyu had just done and read it again.

Then, the way

"About the knowledge point of sufficient necessary conditions, the judgment of true propositions, inverse propositions, and function analysis, these knowledge points go back to read books by yourself."

Ji Xingyu looked at Su Yan with a strange expression

"Teacher, you don't teach me?"

Su Yan paused, then thought about it carefully

"These points can be understood by reading books, and there is no need to teach."

She was very serious, not joking at all.

Ji Xingyu thinks... I may have found a fake teacher.

Then, he stretched out his finger and pointed to the last big question.

"This question?"

Su Yan lowered his head and looked at it for a while.

"Summing of sequences, using the method of elimination of split terms"

Ji Xingyu waited for Su Yan's next words, but found that Su Yan didn't mean to continue.

He asked

"And after that?"

"Do it again, and you get the result, and the result is -2n\n+1"

Ji Xingyu listened to Su Yan's concise words.

He was silent.

Su Yan looked at him suspiciously, half loud

"Remember the expression of the elimination of the split terms? The formula is a bit long, you can read on page 83 of the book, there is an explanation of it. ”

Ji Xingyu didn't open his mouth to speak.

Because Su Yan looked at him, it seemed to say, "I have said it very clearly, and everyone can understand it." ’

Ji Xingyu opened the book in his hand, held a pen in one hand, and wrote words in the blank space of the volume, making a rustling sound.

After Su Yan finished talking to Ji Xingyu, he turned his head to meet Ji Yan's gaze.

She was stunned for a moment.

Then he pushed the dried fruit around him to him.

Ji Yan looked at the snacks that were pushed in front of him.

Didn't move.

"Don't like it?"

Su Yan asked aloud.

Ji Yan's mouth moved, but he didn't speak for a long time.

She thought for a moment, reached out, and tentatively brought a few raisins to his lips.

Ji Yan looked at the raisin, then lowered his head and ate it silently.

Seeing him eating, Su Yan pushed all the raisins around him to him.

Ten minutes later.

Su Yan's gaze moved away from the top of the iPad.

looked at Ji Yan and found that he didn't move those raisins.

Su Yan stretched out his hand, peeled off a few pistachios, and handed them over.

He bowed his head and ate obediently.

When she fed it a few times, he found that as long as she fed, he ate it.

So, Su Yan watched the live broadcast and fed at the same time.

It's like having a pet yourself.

But fortunately, Ji Yan is very easy to raise, and he will not refuse to give him what he eats.

Another half hour passed.

Ji Yan swallowed the pine nuts in his mouth, and when Su Yan fed them again, he finally spoke.

"Do you like to watch this?"

Then after speaking, he silently swallowed the peanuts handed over by Su Yan.

"It's OK"

She replied.

In my mind, the little flower reminded

"Host, it's time for you to go live."

As a system, its responsibilities are not only to send tasks to the host and guide them to complete them, but also to be an alarm clock.

Su Yan looked at the time, and then said to Ji Xingyu

"Alright, today's tutoring is over."

Ji Xingyu's pen paused.

Stopped writing.

Now that the tutoring is over, naturally Su Yan has no reason to stay here.

It's just that when he was about to leave, he looked at Ji Yan without saying a word, but sat on the chair and watched her every move.