Chapter 400: Cooperation Is Still Necessary

At 7:00 PM, the sun hung on the western skyline, and Xu Qingzhou stepped on the sunset to go home. Song Yao was cooking noodles.

Er Miao jumped down from the desk, agile, wagging its tail to scratch at the automatic feeder. After a few days of buffering, this guy finally adapted to the new environment. Not only that, when Song Yao and Xu Qingzhou took it out for a walk, it almost met a new companion.

It's just a pity, I don't know if it's because of the language barrier, but compared to going outside, Er Miao prefers to wander around the room.

Xu Qingzhou sneaked into the bedroom and put the gift away.

Song Yao was wearing a white short-sleeved shirt with an apron tied around her waist, forming a sense of wrapping, and her slender and tall figure was instantly revealed.

Xu Qingzhou sneaked into the kitchen, hugged School Beauty Song from behind, and took the opportunity to squeeze her. "Why so early today?"

"Work is done. You are disturbing me."

Song Yao reminded him expressionlessly, very disgusted with this person who was moving his hands and feet.

"Cook a little more, I'm hungry."

Xu Qingzhou was reluctant, but still let go before leaving, saying that based on his understanding of School Beauty Song, if he didn't know when to stop, he would be beaten.

"Like a pig."

Song Yao muttered in a low voice, throwing a little more noodles into the pot.

At 7:30 PM, the two had finished eating.

The sky was dark. Xu Qingzhou cleaned up the kitchen and came out wiping his hands. School Beauty Song was leaning on the sofa reading a book. Seeing him come over, she put her feet into his arms.

The cold and reserved cold goddess from before had gone forever.

Xu Qingzhou pinched her soft feet, leaned back on the sofa, and suddenly remembered a major event. He immediately took out his phone, typed, searched, stared at the phone screen, and looked solemn.

Song Yao read for a while before realizing that no one was pinching her feet anymore. She looked up and saw her boyfriend with a serious expression, so she leaned over. "What are you looking at?"

"Good stuff."

Song Yao looked at the things on the screen, was stunned for a moment, then lay back with a stinky face. What kind of good stuff!

"Is there anything you like?" Xu Qingzhou pinched Song Yao's feet.

"No!"

Only a ghost would want to wear these stockings.

"You like them all?" Xu Qingzhou nodded slightly and said in a deep voice: "I also think they are good, so let's buy them all."

"..."

Song Yao had already gotten used to her boyfriend's shamelessness. She hummed in opposition and lowered her head to continue reading. She would never wear... well, at least she couldn't let this guy have his way too much, otherwise he would just think of...

Xu Qingzhou didn't care about that much. He happily paid for all the stockings in the shopping cart, pulled a book from the side of the sofa, and while reading, pinched the white and delicate feet again.

At 10:00 PM, outside the window, the night had long shrouded the earth, and the milky moonlight spilled down, intertwined with the lights of the city.

In the living room, Song Yao was typing *ka-ka*, with a thick dictionary on her right, convenient for correcting professional terms at any time.

"Equity free cash flow is net profit after excluding reinvestment and debt cash flow. Reinvestment equals the sum of capital expenditure and the increase in operating capital minus non-cash expenditure. Debt cash flow is the principal payment minus the amount of new debt issuance."

"According to different types of cash flow, cash flow discount models can be divided into three forms."

"Dividend discount model, the formula is as follows: V=ODPS\1+r"

Song Yao typed on the keyboard for a while, and her eyes looked at Xu Qingzhou who was on the phone on the sofa. The family was planning to send them cured meat, sausages, and these things.

"How expensive is the express delivery..."

Xu Qingzhou was a bit helpless when he heard how much the family had prepared.

Wang Xiaping said: "Why do you care about that little bit of money? You two still have half a year before returning to the country."

Xu Qingzhou thought about it, and it seemed to be the truth. He nodded and said: "That's fine, I'll place an order on my phone in a while, and you can just give the things to the courier then."

International express delivery is more troublesome. He placed an order directly on FedEx. Wang Xiaping asked about their recent situation and urged: "In short, you two pay attention to safety, especially at night, try not to go out."

Xu Qingzhou naturally nodded with a smile.

"Also, don't bully Xiao Yao."

"I really didn't bully her. It was clearly her bullying me. Just now she was pinching her fists and saying she wanted to hit me."

Wang Xiaping stood completely on Song Yao's side and said disdainfully: "If you didn't owe it, Xiao Yao wouldn't hit you."

She had heard from Zhang Junli before that Song Yao had learned Taekwondo, Sanda, and the like, but no matter what a girl learned, her frame was just so small, could she really bully this stinky boy?

Although her son's genes had a tiny bit of deviation, as a mother, she understood his personality. He looked sloppy, but he had his own bottom line and principles, and he wouldn't really find an unreasonable girlfriend.

So, it must be this kid who was being cheap.

"Alright, give the phone to Xiao Yao."

Wang Xiaping's concern for her son stopped there.

"Auntie Wang." Song Yao took the phone and called out sweetly, completely different from just now.

(Author's note: Read every word of the content!)

"Are you adapting to the environment there?"

"Adapting."

"There must be a lot of things to buy after moving there. Let this stinky boy move them all, don't tire yourself out."

Xu Qingzhou sighed secretly on the side. Sure enough, it's his own mother.

In early August, the weather in Boston remained unchanged.

In the supermarket, the girl was wearing a white waist-cinching long dress, walking lightly, with a silver-white ring on her slender ring finger.

This person was naturally Song Yao.

Behind Song Yao was Xu Qingzhou, who had been holed up at home for three days.

Buried in calculations for a few days, Xu Qingzhou also made progress. In the original Landau-Siegel zero problem, it was required that the distance from the possible "exceptional" zero to x=1 must be greater than c\logd.

And now the result Xu Qingzhou intends to achieve first is that the distance from the possible "exceptional" zero to x=1 is greater than c\(logd).

It is also the existence of an exceptional zero, not too close to x=1.

This means that the result Xu Qingzhou finally calculated has a certain gap with the original Landau-Siegel zero problem, which can be considered a weaker form.

After this, gradually approaching, the current result is still quite ideal.

The shopping cart was full of big and small bags. It was Song Yao's birthday, and they planned to have a Rongcheng hot pot.

"What's missing?" Xu Qingzhou asked.

"Still missing..."

Song Yao scanned the shelves, paused at the red wine, took a deep breath in secret. Every time she drank, she was prone to doing some impulsive things, but...

So exciting.

She shook her head secretly, hurriedly throwing away the dangerous thoughts, "Everything is bought."

Xu Qingzhou noticed School Beauty Song's small movements. This girl was wild after drinking. She probably had some ideas now, just that her *tsundere* attribute had come up.

Anyway, even if there were any perverted things, it was all his fault; what did it have to do with her, Song Yao?

Xu Qingzhou had seen through School Beauty Song's stupid little self-deceiving thoughts.

(End of chapter)