entertainment hahahahaha

"This thing is really useful."

Qin Shu, who was complaining just now, did not escape the "True Fragrance" theorem. Compared with the previous boats with motors, no matter in terms of speed, strength, maneuverability or work efficiency, they are not the same, and there is a qualitative leap. .

Crossing the river is no longer a problem.

The clear river water reflected the green trees on both sides, and Huang Lei steered the boat upstream. At this moment, they were not working, but playing.

He Jiong sounded the advertisement of the gold master's father, and said: "Peng Peng, I have a question for you.... A river, the two opposite banks are 350 meters apart. It takes 11 minutes for a boat to go down the river to the opposite bank, and it takes 16 minutes to go upstream. What is the velocity of the water in this river in [-] minutes."

Peng Yuchang cooperated with He Jiong in advertising. He thought about it for a while, but didn't say anything right away.

Qin Shu interrupted and teased: "Mr. He, there is something wrong with your question."

"what is the problem?"

"The width of the river is known, and the speed of the water flow is not rigorous. The water flow flows up and down, not left and right. The time for the boat to go to the other side of the river is not affected by the water flow. No matter how much the water flow is, the time for the two sides of the river to go back and forth is the same. Same.

Also, you didn't say that the speed of the boat is constant, it can be fast and slow for a while, and the speed of the water flow is the same.Two unknown variables, impossible to figure out. "

"Ah?" Peng Yuchang and Zhang Zifeng were dumbfounded, they didn't understand what he said.

Huang Lei understood, and said with a smile: "Qin Shu is right, the question is not rigorous, and the time for the boat to go back and forth between the two banks is not affected by the current."

He Jiong thought for a while, but he couldn't figure it out. He just read it. Since there is a problem, he can broadcast it so as not to mislead the students. He smiled and said, "Qin Shu, how do you change it? Just cut it out."

Qin Shu thought for a while and said: "On a river with a uniform flow of water, there are two points ab. The two points are located upstream and downstream, with a distance of 352 meters. It takes 11 minutes to travel upstream from point b to point a, what is the speed of the river?"

"Yo ho, amazing!" Zhang Yixuan joked, although he didn't know right or wrong, but compared with what He Jiong said before, there were more words and more clarity.

Qin Shu said modestly: "What's so great, it's just an elementary school problem." This time he told the truth without showing off.

Peng Yuchang joked with a smile: "Primary school questions? Do you mean that we are not even as good as primary school students?"

Huang Lei answered, "Peng Zai, don't just use the word 'we', just use 'I'."

Everyone was amused and laughed.

He Jiong memorized Qin Shu's question and advertised to the beneficiary's father again.

On the other side, on the stone path leading to the mushroom house, Yang Zi dragged the big and heavy suitcase step by step and walked forward with difficulty.

I thought: "Didn't you say that there are people coming out to greet you? Where are the people?"

The people didn't see it, but the dog saw two. Yang Zi greeted each other, "Little, little... Xiaoba!... Are you Xiaoba, or Xiaoq?"

Xiao H looked at her with a confused face, who is Xiao Ba?Who is Little Q?

You don't even know the dog and you come to the Mushroom House?

She didn't welcome her, so she turned around beautifully, pointed her butt at her, and trotted away wagging her tail.

"Xiao Ba, why did you run away?"

Yang Zi interacts with dogs when she sees no one, but it's a pity that the little hives don't like her.

After finally walking to the small courtyard, I looked up, but there was no one, and the door was still closed, so I listened carefully, and it was quiet.

"Why is there no one?" Yang Zi ran to look around to make sure there was no one.

"Where are they?" Can't help asking the staff.

"They went to the river to transport saplings." The staff pointed in the direction.

Yang Zi walked along and saw a small boat floating in the river from a distance, "Is it them?" It was too far away to see clearly, so he trotted a few steps and walked to the pier to wait and see.

The boat gradually approached, and she could already distinguish the people on board, raised her hand and shouted: "Hey... Teacher He, Teacher Huang, Zifeng, Peng Peng, Yixuan, Qin Shu."

Everyone on the boat also saw her, and He Jiong and Zhang Zifeng greeted her warmly.

When the boat docked, Yang Zi went up to welcome her, and He Jiong got off the boat and gave her a warm hug, welcoming her to Mushroom House as a guest.

Zhang Zifeng also stepped forward to give her a warm hug. The two have known each other for a long time and are good friends.

"Sister, you've lost weight." Zhang Zifeng said.

"Have you lost weight?... You have lost weight too."

The two boasted to each other, and then laughed out loud, Zhang Zifeng smiled happily, and she was very happy that Yang Zi came.

Qin Shu spread his arms and teased: "Sister Yang Zi, long time no see, she has gained a lot of weight, come, give me a hug."

Yang Zi joked: "You're fat, go and find someone else, I'm afraid of being beaten."

Having said that, he finally hugged Qin Shu lightly.

Zhang Yixuan also came up to say hello, jokingly said: "Hello, Gossip Girl."

Knowing that he was joking, Yang Zi laughed a few times.

"What?" Qin Shu was confused, "What rumored girlfriend? Are you two dating?"

"No." Yang Zi explained: "It was uploaded on the Internet that we are rumored girlfriends, and I don't know what's going on, it's inexplicable."

"Oh." Qin Shu understood. Since it was a gossip, he couldn't make fun of it, so he turned around and carried the sapling off the boat without saying anything.

Huang Lei said: "Yang Zi, come up and take you to play."

Yang Zi smiled modestly: "Is it appropriate to play right away?"

Qin Shu joked: "Sister Yang Zi, you are so righteous, you know that you have to work.... Move the saplings to the mushroom house, and I will give you a few more bowls of rice later."

Yang Zi fought back: "Qin Shu, is there anyone like you who made me work as soon as I came here, without taking a sip of water."

Qin Shu smiled and bent down to pick up a handful of river water, jokingly said: "Come on, I'll give you a sip of the water from the Mushroom House's mother river. It's sweet and refreshing. After drinking it, you'll feel refreshed, and all diseases will disappear."

Everyone was happy, He Jiong smiled and said: "Yang Zi, come up quickly, don't pay attention to him."

Zhang Zifeng also said: "Sister Yang Zi, come quickly." She gave up the seat next to her.

"Hmph." Yang Zi walked in front of Qin Shu and hummed softly, then sat down next to Zhang Zifeng.

Zhang Yixuan saw everyone getting on the boat, and said, "Master, how about I come to sail the boat?"

"Okay." Huang Lei gave up his position and told him how to control it.

It's very simple, once you learn it.

"Are you all ready? Captain Zhang is about to sail." Zhang Yixuan was more active than usual, twisting the accelerator, the boat gradually accelerated away from the river bank, driving on the clear and calm river.