Famous doctor and virtuous woman

Chapter 122: A Natural Couple 3
At this question, all the students were slightly stunned, and all looked at Da Sikong eagerly.

Quiet, quiet, quiet, Da Sikong's smile froze, the corners of his brows trembled, he glanced around and said: "The so-called floods are caused by heavy rains. There is a lot of rain in the south, and the surface water is hard to absorb. As a result, every time there is heavy rain, there is a vast ocean everywhere, and the crops are soaked in water." There are no particles in the water..."

Si Yun lay on the table, heard something in a daze, his mind spun automatically, and immediately thought of the key to the flood.

It is true that Da Sikong said that the rain is the main culprit, but that is not always the case.

The south mainly grows rice, and if there is no rain, it will be a disaster.

And every time there is a heavy rain, there will be waterlogging, Si Yun thought of a possibility, that is, they did not dredge the water flow well, causing the water flow to overflow the fields directly.

In this way, every time there is a heavy rain, not only will the crops be soaked, but also the mud in the field will be washed away. Even if the crops are not washed away, the fertilizer in the field will also be washed away. If the crops have no nutrition, how will they grow?
The solution is easier said than done.

After Da Sikong explained what the flood was, he looked at the students with a smile and said, "How, do you understand? Do you have any questions?"

All the students whispered, most of them were saying that Da Sikong knew a lot.

Da Sikong laughed proudly, his eyes flashed with pride, he patted the table and said loudly: "Quiet and quiet... the classroom is a sacred place, how can you make noise."

The students finally calmed down.

Da Sikong smiled: "Since I understand what a flood is, let's think about how to prevent it, and discuss it in a low voice."

Someone twitched. Didn't you say that the classroom is a sacred place and you shouldn't make noise?
Listening to the discussions in the classroom, I feel very bored, and my good sleep time has been lost!

A student said: "Sir, the students think that the southerners should be allowed to move to the north, so that they don't have to worry about the annual floods, and they don't even have to die."

Da Sikong smiled: "This is also a way, but people in the south are cold, and they can't stand the cold in the north. The weather we are used to is also a disaster for them, so this method will not work."

A student said: "Let them fill up the fields so that the rain cannot soak them."

Da Sikong smiled: "If everyone is doing this, where to find so much soil?"

A student said: "Wouldn't it be better to let them block the water when it rains?"

Da Sikong asked back: "Speaking lightly, how can I block it?"

"This... the student doesn't know." The student was stopped by the question, and sat down awkwardly.

……

Da Sikong glanced around, and the moment he turned his eyes back, he caught a glimpse of another book standing upright from the corner of his corner, and the eyes that were about to move away swept back, staring at the book firmly.

If it's not that the student is too small, he is sleeping.

But obviously, that student was sleeping, because children's shoulders are not that broad!
Following Da Sikong's gaze, many students also noticed it, and followed Da Sikong's gaze.

Si Yun suddenly felt as if the book in front of him was about to be burned, and he had a bad premonition that Nima was found sleeping! ! !
Nangong Hongfeng sat on pins and needles, quickly pulled her foot back, and kicked Si Yun hard again.

Si Yun felt the pain, raised his head, and gave him a vicious look.

The book was knocked down suddenly, revealing her little face full of fierce eyes.

⊙﹏⊙bhan

Why are you looking at her?

(End of this chapter)