Chapter 648

"Miss Lu, we were not bitten by a snake. We just joined hands to catch the black hand who let the snake out in our dormitory last night."

Zhang peipeipei was the first to stand out at the critical moment.

"We caught the three snakes last night and put them in Zhou Chengzhe's bucket this morning while he was brushing his teeth. There was a basin on the top of the bucket, and he didn't pay attention to it, so he put it under the bed. We're just returning his stuff! The figure that flashed past our window last night was clearly a man

Zhou Chengzhe's eyes sank: "you don't have any evidence to say it's me."

The appearance of Zhang peipeipei and Jian Junling disrupted Zhou Chengzhe's plan and made him nervous.

"We didn't say it was you, Zhou Chengzhe. Don't worry about it. What's more, is it not suspicious that you are aggressive today and want Yunxi to be convicted? You are the first person to jump out and plant Yunxi. Other students are not so active as you

Zhao Yumo then got up and rebuffed him.

"You! It's clear that you're working together to frame me up! I didn't do anything! You have a lot of people who want to catch thieves. Naturally, you can say whatever you want to say! "

Living in a weak position, Zhou Chengzhe was afraid that this would make him certain, so he had to turn to Lu Zhiwei for help.

"Mr. Lu, you can see that they have teamed up to frame me up! I did nothing at all

Lu Zhiwei looks at Yunxi. Before he opens his mouth, Yunxi grabs the words first.

"Since what you say seems reasonable, you might as well make an experiment! This time, we all brush questions with biology, and occasionally we have to do experiments. We use experiments to detect who these snakes are getting in! "

Lu Zhiwei slightly narrowed his eyes. The gifted girl who had been unable to do anything, finally did not intend to leave herself alone.

If she does, it means that the good play has just begun!

"The laboratory is not far away from here, so please ask the teacher to bring some c acid. The school sewer is connected to the canteen, and the water must contain insoluble oil components. In chemical reactions, c acid can coagulate and discolor the oil. Even if you wash your hands and remove the taste and trace, the superficial oil left on the surface of the skin can still stay for a period of time, as long as you put your hand in the c acid In aqueous solution, hands turn brown, indicating that something has touched the sewer. This teacher is carrying a cage. The cage is full of dirty water from the sewer. You can be the first to do the experiment. "

"Good! I'll send someone to dilute the aqueous solution of C acid. "

As soon as the teacher carrying the cage left, Zhou Chengzhe suddenly became nervous. He put his hands in his pocket and clenched his fist into a little shaking.

He did not expect to have such a out, but also did not expect that Yunxi this dead girl could come up with this method to detect!

His hand touched the cage of the snake last night. Although he had gloves, the gloves were cotton and not waterproof!

What to do now? Once he reaches into c acid, it will be exposed!

How can he make this lie for himself?

Yunxi glanced at Zhou Chengzhe's restless appearance and hissed in front of the black cage, just in case.

Soon, the diluted water solution of C acid was delivered. The teacher who carried the cage first did the experiment. Sure enough, after a while, the palm of his right hand looked like dyed brown.

Teacher Xu looked at the side, and he also reached into the basin to brush, and his hand did not change color.

Yunxi raised her eyebrows. "Miss Xu, teachers and professors, just now Zhou Chengzhe said that this glove was left by me outside the window, and the glove was still wet, which means that the snake catching hand must also be contaminated with the sewage water. I'll do the experiment first!"

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