"And ......" Cheng Nuo walked to the stall, put the bundle of spinach in his hand and turned it upside down, then pretended to look at it carefully, and continued to speak.

"When spinach is picked from the soil, it undergoes photosynthesis and respiration for a short period of time because the cells are not yet dead. Photosynthesis 6 CO2 + 12 H2O ===C6H12O6 + 6 O2 + 6 H2O, respiration C6H12O6 + 6 O2 + 6 H2O ===6 CO2 + 12 H2O. ”

"Boss, you said that the time of your picking was last night, and in the absence of light, there will be no photosynthesis at all, and organic matter will be produced, but only respiration will be carried out and organic matter will be consumed. It stands to reason that the amount of organic matter in spinach should be less at this point than it was when it was grown!"

"But!" Cheng Nuo's tone changed, pushing his glasses, and said with a faint smile, "I was upside down just now." Based on my years of experience in grocery shopping, the weight of this spinach is around 580 grams. Then, according to a formula called W. Zkibenzy, the organic content is about 56 grams, which is about 5 grams higher than the normal value. ”

"What does this mean? It means that after you pick the spinach, the spinach leaves have a period of photosynthesis. In the case of darkness, photosynthesis is simply impossible. So, I'm sure to judge, boss, you don't pick the spinach in the middle of the night, but ...... During the day!"

"The normal growth cycle of spinach is about 37 days, and the time since your spinach was planted, I just observed, it has been almost 41 days. Therefore, I would venture to speculate that the boss picked these spinachs in the greenhouse one morning two or three days ago. Then it was left outside in the sun for about an hour or so. Then put it in a dark place to keep it fresh, and finally, take it to this vegetable market to sell!"

"So, I really want to have only one! Boss, what you said is completely false! This is not a freshly picked spinach at all!" Cheng Nuo's voice couldn't help but rise a little, causing the people around him to look sideways.

"Boss, I don't know, am I analyzing it right?" Cheng Nuo looked at the female boss with a smile on his face.

When Cheng Nuo saw the bundle of spinach for the first time, he was already suspicious.

If it's freshly picked spinach, the kind of green on the leaves is definitely green and glowing, so green that you panic.

But the spinach on the female boss's stall didn't make Cheng Nuo feel panicked at all.

So he turned on the ability and glanced at it briefly.

Sure enough, with Cheng Nuo's wise brain, he quickly deduced the exact time when the female boss picked spinach with the data in his eyes.

Quiescence...... There was a silent silence......

The female boss grew her mouth and looked at Cheng Nuo with a stunned expression, unable to say a word.

Because...... Cheng Nuo is right!

This batch of spinach was indeed picked by her in the greenhouse the morning before yesterday. Because it wasn't sold out yesterday, I sold it today.

This is also a common situation in wet markets.

If you don't sell out of the vegetables on the first day, and you still have a lot left, you will sell them the next day.

Ordinary customers will be suspicious at most, but there is no sufficient evidence, and customers do not suspect him, and they still pay for it happily.

Like Cheng Nuo, he took out a lot of data to deduce the exact time of vegetable picking, and to be honest, it was the first time the female boss had seen it.

The key is...... That's right!

Are all today's high school students so awesome? Can you reason so much just by looking at it?

The female boss has deep doubts that she is studying in a fake high school!

was nakedly exposed by Cheng Nuo, and the female boss couldn't continue to be deceived in the past. But she didn't want to lose this business, so she smiled awkwardly, "Ahem, Auntie, although my spinach is not freshly picked." However, I dare to say that in the cultivation process, I have not sprayed any pesticides, absolutely safe, green and pollution-free. Take it back and make the soup, absolutely safe!"

The female boss is still a sworn guarantee.

"Nonono......" Cheng Nuo pushed his glasses and waved his finger with a smile. "Boss, you're wrong again. ”

"Your spinach has a pesticide residue inhibition rate of more than 65%. The standard stipulated by the state is 50%, boss, you have exceeded the standard by 10%, and you still say that you have not used pesticides?" (pesticide residue inhibition rate: under certain conditions, organophosphorus and carbamate pesticides have an inhibitory effect on the normal function of cholinesterase, and their inhibition rate is positively correlated with the concentration of pesticides. ）

The corners of Cheng Nuo's mouth curved, looked at the boss with a thick look of horror in his eyes, and slowly spoke, "Boss, do you want me to tell me about the brand you spray pesticides?"

"No need. No need......" The female boss laughed dryly, barely squeezed out a smile on her face, and said to her grandmother, "Auntie, I really can't afford to provoke this young man you brought, I can't afford to provoke it, you better go to another house to have a look." ”

The female boss was also scared. With so many people watching, his bottom continued to be shaken by Cheng Nuo, and the reputation he had accumulated with great difficulty was gone.

The female boss also figured it out, and would rather not be able to make this single holy clothes, but also get Cheng Nuo, an evil guy, away.

"Okay, then let's go to another house. Grandma smiled.

For Cheng Nuo's words, my grandmother is convinced. Looking at the face of the female boss, you can know that Cheng Nuo's reasoning is all correct.

It's not fresh, it's not healthy, so what is grandma doing here?

So he turned around and went to the other stalls.

"Xiaojun, what are you doing there, let's go. Grandma saw that Jiang Jun was stunned in place, and couldn't help but greet him.

"Oh, here we ......"

Now Jiang Jun's head was dizzy.

After watching Cheng Nuo's pretending performance just now, a few words kept echoing in Jiang Jun's mind.

Tianxiu!Chen Duxiu!The show of the flower!The creation of Zhong Shenxiu!

It's so showy that the Italian cannon of the second battalion commander explodes directly!

There is still such an operation!!

In Jiang Jun's long-standing concept, isn't going to the vegetable market to buy vegetables just by adding, subtracting, multiplying and dividing?

After watching Cheng Nuo's operation, Jiang Jun felt that if he didn't have a college degree in the future, he wouldn't be qualified to come to the vegetable market to buy vegetables!

I haven't seen each other for a few months, and what has become ...... my cousin So showy?

..................

In the end, with the help of Cheng Nuo's special abilities, my grandmother finally bought fresh, safe, pollution-free, and panicked spinach after visiting four or five stalls.

Then the three of them went around and around, and finally bought all the vegetables they needed in the area where they were sold.

"Let's go buy some ribs, and meat!"

Since my grandmother promised to make sweet and sour pork ribs at noon, the pork ribs must be indispensable.

So, the three of them walked to the area of the vegetable market that specializes in selling meat.

Jiang Jun helped his grandmother carry several bundles of vegetables and followed behind with a snort.

Jiang Jun looked at Cheng Nuo, who was walking in front with his hands lightly, with a sad and angry face, "Cousin Cheng Nuo, seeing that my cousin is so tired, shouldn't he offer to help?"

..................

Ask for a recommendation!!