Over time

Lin Jiu was meditating, and then heard a knock on the door, and a pleasant voice came from the bedroom door.

"Lin Jiu, are you there? Can you open the door?"

Lin Jiu shuddered, got up from Ye Xi's bed, and patted the bed discreetly.I knock, I'm still sitting on your bed!Can you not attack suddenly!Lin Jiu's heart was broken.

Lin Jiu drifted to the door and opened it for Ye Xi, who had already changed into a suit of clothes.

With a height of 1.6 meters [-], she was wearing a white short-sleeved shirt with a small bow on the chest, matched with a short brown skirt, tied into a ponytail, and looked at Lin Jiu with twinkling eyes.

Lin Jiu said that she received a critical hit of [-] points, it's shameful to be cute, it's too cute!

Seeing Lin Jiu staring at her, Ye Xi was puzzled, but she still took out her hand and shook her hand in front of Lin Jiu.

"What's wrong with you? Lin Jiu?"

"Ah? Oh... Oh, it's okay, you can come in."

Lin Jiu took the initiative to step aside, and Ye Xi entered the bedroom with doubts. After Ye Xi entered, Lin Jiu closed the door and returned to her bed.

Then Honey was embarrassed, and after a long silence, Ye Xi spoke first.

"Well, I'm going to take a shower!"

Lin Jiu was taken aback for a moment, then nodded, humming.

Until Ye Xi entered the bathroom, Lin Jiu's mind was constantly scrolling through bullet screens.

Lin Jiu thought: Oh ho ho ho ho, why is she back?Oh ho ho, I was scared to death just now!Oh hoo, she's so cute.Oh my God!Am I out of my mind? !

When Ye Xi came out, she saw Lin Jiu reading a book on economics, with books on medicine and psychology next to her, and then Ye Xi walked over quietly, quietly!

Lin Jiu looked too seriously, and didn't notice Ye Xi at all. Ye Xi looked at the place where Lin Jiu was looking, and Ye Xi kept the good habit of asking when he didn't understand.

"What does this extension cord mean?"

Lin Jiu replied subconsciously:

"The extension line is a ray starting from the origin. Other things being equal, if the firm's total cost changes, the isocost line will shift. If the firm's total output changes, the isoquant line will shift. These different isocost lines will be tangent to different isoquant lines to form a series of equilibrium points, and the trajectory of these equilibrium points is the expansion line of enterprise production.”

After Lin Jiu finished speaking, she was stunned, and tilted her head to look. Ye Xi was very close to her, and there was a scent of milk from Ye Xi.

Lin Jiu said with emotion in her heart: It smells so good!

After hearing what Lin Jiu said, Ye Xi soon understood.

"Why do you want to learn so fast, Lin Jiu?"

Ye Xi tilted his head and asked, looking a little distressed, biting his red lips subconsciously.

Lin Jiu swallowed uncontrollably, seeing Ye Xi like this, she wanted to touch her head a little bit.

"Probably because I'm bored."

"Self-taught?"

"Not obvious?"

"Oh, that's it! Then can I ask you a question?"

"can!"

So their conversation that night is as follows.

"What is the production possibility curve?."

Ye Xi pointed to the book and asked.

Lin Jiu said solemnly:

"The production possibility curve, also known as the "conversion line", refers to the different combinations of the maximum quantities of various commodities that can be produced by making full use of existing resources under certain technical conditions."

Ye Xi pointed and asked:

"what is this?"

Lin Jiu is serious:

"This is biubiubiu...biu."

In this way, the two academic masters talked until 11:30...

Finally Lin Jiu said:

"It's late, go to bed!"

Ye Xi: "Good! Good night"

Ye Xi returned to her bed.

Lin Jiu: "Good night, sweet dreams!"

Just fell asleep like this, our Miss Lin Jiu didn't know why she had to talk about economics all night, and we all, Miss Ye Xi, were also very confused, so they went to bed with their own stupidity...

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small theater:

Lin Jiu: Why do you ask questions?

Ye Xi (doubtful): Why are you talking about it?

Lin Jiu (surprised): Because you asked!

Ye Xi (rolled eyes): I asked you to talk about it?

Lin Jiu: ...My fault, I shouldn't talk too much.

Ye Xi (proud face): Knowing the mistakes can make things better

Lin Jiu: ...

Author: In fact, Lin Jiu is only stupid when facing Ye Xi! ! !In fact, she is very smart!Hold high the banner of Brother Jiu! !