Xiaojiao, the god of learning, is really hard to follow

Chapter 33 Daughter-in-law, you are embarrassing me
Xie Zhi deliberately read in a cadence, as if he was very knowledgeable.

Yan Mumu heard it immediately, with his well-known achievements, how could he say such polite words?
Seeing through but not telling, Yan Mumu rolled his eyes, and a trace of cunning flashed in Yan Mumu's eyes.

After reading, Xie Zhi knocked lightly on the door with his index finger: "Did you hear that? Be afraid, be careful to get stones and go for surgery. Tell me what to eat tomorrow morning, and I will buy it for you. Buy it casually tomorrow morning, if it doesn’t suit your wish tomorrow morning, you are not allowed to quarrel with me.”

"Hey, Xie Zhi, do you know what kind of acid stomach acid is?"

The lights were turned off in the room, although it was pitch black, but for some reason, Yan Mumu was inexplicably at ease when he could hear Xie Zhi leaning against the door and talking to him.

She was lying on the bedside table, not feeling sleepy, and opened her mouth as soon as her sly eyes turned.

"What kind of acid?"

Xie Zhi was confused by Yan Mumu's sudden question, he moved his ear closer to the door to listen carefully to what Yan Mumu had to say to him.

"Is stomach acid strong or weak? It's a 50% correct multiple-choice question. Guess."

"Stomach acid must be a weak acid in the human body. If the strong acid is like sulfuric acid, wouldn't people be corroded to death?"

Xie Zhi said one thing after another, and he was ready to accept his daughter-in-law's compliment.

But he never thought that Yan Mumu's voice of suppressed laughter could be heard in the room in the next second: "Pfft..."

Xie Zhi frowned slightly, and suddenly noticed something was wrong: "What are you laughing at... Could it be my fault? It shouldn't be... Doesn't that thing have to be sterilized? Right..."

As he spoke, Xie Zhi himself began to feel unconfident, and his tone became a little lower.

In essence, Yan Mumu began to popularize science: "Gastric acid is mainly dilute hydrochloric acid, with a pH of around 2. Most bacteria and viruses should be killed, but in fact many bacteria and viruses are killed by the body's immune cells, so There is no need to consider the problem of gastric acid sterilization.

Although the acidity is relatively weak, it is a strong acid. A strong acid is defined according to whether the solute molecules can be completely ionized. HCl is completely ionized and is a strong acid, but it is relatively dilute. "

Xie Zhi felt comfortable listening to his wife's voice, which was delicate and sweet.

If he had met such a teacher in high school, he would have returned to class a long time ago.

Kuayan Mumu immediately started blowing rainbow farts.

"Awesome! I learned it. Learn a knowledge point with Yan Xueba every day."

"Just buy one and get one free, and I'll give you a knowledge point." The knowledge summary in Xu Shi Xueshen's mind is too clear. When it comes to stomach acid, Yan Mumu's thinking begins to expand: "Do you know which line of defense stomach acid belongs to?" ?"

"What……"

Xie Zhi was dumbfounded, this...why does he even seem to...do not understand the title...

He lowered his head and clasped his fingers feeling a little embarrassed, still not wanting to look stupid in front of Yan Mumu, muttering: "Number one?"

Yan Mumu didn't hear clearly: "Huh? What did you say?"

As soon as he gritted his teeth and closed his eyes, Xie Zhi took the exam as the answer: "The first line of defense!"

"Really or not? Do you really know or lie?"

Yan Mumu's tone was somewhat doubtful and pleasantly surprised.

Xie Zhi's eyes suddenly lit up.

!!!

Hey, this is not right!
He said, "I must know it myself, how could I not know it."

"Then explain to me what the first line of defense refers to, and what is the second line of defense?"

Yan Mumu asked, Xie Zhi: "..."

Inner OS: Daughter-in-law, I think you are embarrassing me.

　Hahaha, today's biological knowledge point is sent (ФωФ)
　　
　
(End of this chapter)