The Military Medical University stipulates that all cadets must return to the school on the 3rd, and the squadron leader will go to the dormitory in the evening to give a little name.

Therefore, Lin Xiaohuan only stayed at home for two days, and returned by car on the evening of the 2nd.

Arrived early on Sunday morning in the West Side.

Although she didn't say it, Su Luo guessed it, so she went to the station to wait for her in advance, and when she received her, she was sent back to the Military Medical University, and Xiao Hei was also brought back to the camp.

The military training is over, the National Day holiday is over, and the trainees have officially embarked on the road of studying medicine.

Lin Xiaohuan: They are a five-year clinical medicine major that requires a huge amount of knowledge of the medical system.

At the same time, as soldiers, they also have to learn military medical knowledge and continue military training.

Of course, there is also some public knowledge, which they also have to learn.

The course schedule for the first semester of Xicheng Military Medical University is basically a public course.

They are Advanced Mathematics, English, Organic and Inorganic Chemistry, Statistics, and Political Science, in addition to three military classes a week.

During class, two cadet classes study in one classroom, so a squadron is divided into five squads.

Lin Xiaohuan and the 1st and 2nd classes are the cadets of the first squadron and the first detachment.

The first class on the first day was organic chemistry.

The teacher is Professor Li Jianxun, a middle-aged male teacher with medium stature and good facial features, although he is wearing a military uniform, he does not have a strong military aura, but has more of a teacher's elegance.

He stood on the podium and looked at everyone with a smile, "Hello students, I am your chemistry teacher, Li Jianxun, you can call me Teacher Li or Teacher Li, I will teach organic and inorganic this semester, as well as biochemistry next semester." ”

It may be that his expression is too gentle, and everyone has just had a holiday, Liu Li, who likes to joke more, immediately smiled and continued: "We want to call you Professor Li." ”

"Thank you." Li Jianxun smiled slightly, stared at Liu Li in the next second, and said solemnly: "Lizheng!" ”

"Smack......

Liu Li subconsciously got up immediately and made a straight posture, because the movement was fast and sudden, and the chairs under his buttocks were brought to the ground.

Li Jianxun looked at him and said, "Introduce yourself." ”

"Report to Instructor Li, I am Liu Li from Class 2 of the 1st Squadron of the 83rd Clinical Brigade, please instruct." Liu Li's face remained unchanged and he responded loudly, but he was beating the drum in his heart, regretting that he shouldn't get carried away for a while.

Lin Xiaohuan heard the answer at the back of the classroom, and couldn't help but snicker in his heart, Liu Li, Liu Li, why are you always the first to be shot.

Li Jianxun looked at him and said slowly: "Liu Li, don't you have military training?" The captain has forgotten what you have taught, unless the teacher asks a question and takes the initiative to speak and make a report. ”

"Yes!" Liu Li did not hesitate at all and continued loudly.

"Sit down." Li Jianxun spoke, and his expression became gentle again.

But the students didn't dare to take it lightly, and everyone sat up straight and took on a military posture.

Seeing this, Li Jianxun looked at everyone and said with a smile: "Let's introduce them in turn in order of seats." ”

"Yes!" Everyone responded in unison.

The seats in the classroom are one person per person, and everyone sits in order of military training queue.

Therefore, Wang Min was the first to stand up, "Report to Mr. Li, I am the squad leader of the 1st squad of the 1st detachment of the 83rd clinical squadron, Wang Min." ”

After that, all the trainees introduced themselves.

After Li Jianxun got to know him, he continued: "The students who were admitted from the local area are all science students, and they must have studied chemistry in high school, so they should be no strangers to this subject. ”

When Lin Xiaohuan heard this, he suddenly remembered that when he was in college, the alumni of the chemistry major said that high school chemistry is an entry-level pediatrics, and it is not comparable with the organic and inorganic and analytical aspects of the university.

I don't know if that's the case.

Li Jianxun's next words cleared her up, "However, the chemistry you are studying now is more detailed and deeper than the knowledge in high school, and it is more important to you." ”

The students listened carefully and did not dare to answer indiscriminately.

Li Jianxun continued: "Are any of you curious, we are studying medicine, why chemistry is very important. ”

When the students heard this, they all looked at him with curious eyes, waiting for him to solve their doubts.

"Because chemistry and medicine have similarities, the human body is undergoing chemical reactions all the time, such as acid-base balance, phospholipid metabolism, etc., and often some diseases are caused by disorders of metabolism and balance in the body."

Li Jianxun explained casually.

Seeing that the students showed half-understood looks, he didn't continue to say deeply, but said something else, "We are a military medical university, so naturally we can't do without military learning, and the application of chemistry in military affairs is also very deep and wide, such as explosives ......."

Speaking of this, he paused for a moment, looked down calmly, and saw that everyone showed shocked eyes, and then smiled, "If you learn chemistry well, you will know how to make bombs." ”

The students' eyes immediately widened, and some even couldn't help but gasp.

Oh my God, it's true!

Lin Xiaohuan was also surprised, in fact, she had heard the alumni mention this before, but at that time, they were all bragging and joking.

However, Mr. Li's words should be true.

Li Jianxun went on to introduce to everyone, "Chemistry is related to our army, in addition to conventional weapons such as explosives, there are also many chemical weapons, such as mustard seeds and sarin gas, which are also weapons that can be made through a series of chemical reactions."

"Chemistry is amazing." I don't know which male student couldn't help but whisper.

When Li Jianxun heard this, he changed his words and said with a smile: "Of course, although you know the theory, many materials and reagents are generally not available, such as the concentrated sulfuric acid and calcium fluoride that sarin needs, it is difficult to buy, otherwise the society will not be in chaos." ”

"Heh......"

When the students saw him joking, they also laughed quietly.

Lin Xiaohuan was a little surprised, can sulfuric acid still be used as poison gas? I unconsciously thought about the last time I was in the department store.

Li Jianxun saw that everyone had a strong interest in chemistry, so he didn't say anything more and began to take classes officially.

After a class, Lin Xiaohuan took advantage of the break to raise his hand and ask for instructions: "Teacher Li, I have a question for you." ”

"Ask, everyone is welcome to think positively and ask questions." Li Jianxun nodded.

Lin Xiaohuan smiled and said: "Since some reagents are dangerous goods, what if they must be used for experiments in some places?" ”

"If it is a regular laboratory, you can apply to the relevant departments for procurement, such as our military medical university, there is a special person responsible for the procurement of chemical supplies, but we are through military channels." Li Jianxun explained with a smile.

Dedicated person in charge? Military channels?

Lin Xiaohuan was a little puzzled, looked at him and continued: "Teacher Li, will our school let students go out to buy it?" For example, go to the store and buy concentrated sulfuric acid and phosphorus. ”

Li Jianxun immediately shook his head and said seriously: "No, the school has a special person in charge of chemical procurement, and the two things you said are also needed to make sarin, and it is impossible for students to interfere." ”

Lin Xiaohuan's face immediately changed.

Li Jianxun also sensitively noticed that her expression had changed, and then thought of her question, his eyes also deepened, "Lin Xiaohuan, please come out with me." ”

"Yes." Lin Xiaohuan responded, and followed him out of the classroom after speaking.