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

chapter 88
Seeing Yan Mumu, Xie Zhi's complexion and tone improved many times: "How many years has he been graduated, and his brain has degenerated."

Facing Yan Mumu sideways, with his back turned to Sheng Yan, he didn't want to look at him at all, raised his hand and gently tugged at the corner of Yan Mumu's clothes, bowed his head and spoke softly, and the ending sound was a little long, it sounded a bit coquettish, not at all Paying attention to Sheng Yan behind him, she didn't mind him at all: "I don't want him to teach... you teach me..."

The arc of Sheng Yan's mouth deepened, and he leaned against the edge of the desk with his hands folded around his chest.

I just want to take a picture of the scene in front of me and send it to the old man.

If the old man saw this, he would have to come overnight to make an appointment for his granddaughter-in-law.

Regardless of other things, if Xie Zhi can be cured, Yan Mumu is completely good enough to be Xie's grandson's wife.

The old man probably only worried that his daughter-in-law would look down on his grandson.

"If you don't know it, you have to ask, and you have to pick the teacher."

Yan Mumu lowered his head, took the test paper from Xie Zhi's hand and spread it flat on the table, and pushed him: "The ancients said, don't be ashamed to ask, it won't do anything if you ask Dr. Sheng, that's your brother, he's sure I'd be happy to teach you, Dr. Sheng, right?"

"Well, yes, of course I am happy to teach my lovely brother."

Putting his hands on the table, Sheng Yan knew Xie Zhi's awkwardness, so he stopped teasing him and began to explain: "Look at the second question, which one is correct.

A said that after Fehling's reagent was mixed with glucose solution, a brick red precipitate appeared.This is wrong, there is a lack of a water bath heating step, if there is no water bath heating, there will be no brick red precipitation.

B said that to observe the distribution of DNA in cells, you can directly use methyl green staining solution.This is also wrong, because to observe the distribution of DNA in the cells, it is necessary to use a mixed stain of methyl green and pyrrored.

C said that when identifying the fat in the sample solution to be tested, it is necessary to use a microscope to observe the specific color.It is still wrong, because when identifying the fat in the test sample, you can directly observe the specific color with the naked eye, but if you are observing a section, you need to use a microscope to observe.

D said that when the biuret reagent is mixed with a certain enzyme solution, a purple reaction may not necessarily appear.This is correct, because a small number of enzymes are RNA, mixed with biuret reagent, there will be no purple reaction. "

Sheng Yan's voice was just like his appearance, very warm and slow, making it sound like gurgling water, long and long, very comfortable.

The knowledge is also very solid, and there is nothing wrong with what is said.

The sound stopped moderately in the middle, and there was no jamming at all.

Talk slowly.

"Dr. Sheng, it's been so long since you graduated and you can still remember these basic knowledge."

Yan Mumu was quite surprised. She was not surprised by the technical questions, but she was quite surprised that the color reaction was backed down.

"I'm a medical student. I have to study biology and chemistry in college, otherwise I won't remember."

"Dr. Sheng, where did you go to university? The score of the college entrance examination for medical students is quite high."

"I'm in Nanqing."

"Ah, Nanqing, I also want to go to Nanqing, Dr. Sheng really..."

"Tsk."

A dissatisfied voice interrupted the conversation between the two at an inappropriate time.

Xie Zhi frowned and looked at Sheng Yan: "Don't you have any vision? Can you go?"

Hearing his daughter-in-law boast happy? ? ?
"Is this the attitude when I just taught you the topic?"

With that said, Sheng Yan took out the kraft paper envelope that he had prepared early in the morning from his pocket and put it on the table.

The apparent thickness of the stacked money made both of them stunned for a moment, not knowing why.

　There are two updates today, if the recommendation ticket can reach 500 today, it will be added~ Currently it is 465, go for it, babies!If you reach 500, you will add more~~~
　　


(End of this chapter)