Qi Xiangyang left on the same day, and hurried to the airport in a hurry, and Su Liang returned to the chief alone.

Looking at his vacant position, Su Liang was stunned for a long time.

Suddenly I felt a large empty space in my heart......

"Let's open the textbook, let's enter a new course today......" Professor Lin gave a lecture on the podium one by one, and his voice was like a bell.

Su Liang came back to his senses all of a sudden, his gaze fell to the empty position on the other side, he was stunned, and his eyes narrowed.

Le Shan also took a leave of absence......

It seems that he was scared by Qi Xiangyang that day.

Without Le Shan, except for the boys in the classroom, no one would take the initiative to talk to Su Liang.

Thinking that she would have to face such a cold environment alone for the next period of time, Su Liang was a little unaccustomed to it.

Fortunately, Qi Xiangyang left City C, so the time for her to hand in the task could also be postponed on time......

Yan Yan suddenly disappeared, leaving only a few wild cats behind.

Before Qi Xiangyang came back, Su Liang could breathe slightly.

It's like a person who is about to drown, and suddenly he is pulled......

****

A month later.

Chief Chemistry Laboratory.

"Great!"

Su Liang stared at the toxins analyzed by the blood agent, and a smile finally appeared on his tense face.

For a month in a row, she spent almost all of her time in the laboratory except for eating and sleeping, and finally let her find out.

Reaching out to pick up the printed blood analysis report, Su Liang glanced at the ingredients that appeared on it, turned around and walked towards Professor Lin's office.

"Knock knock—"

Su Liang stood outside the office door and knocked respectfully.

"Come in." Professor Lin's deep voice came from the office, Su Liang took a deep breath, clenched the report in his hand, pushed it away and walked in.

"It's Su Liang, it's after school now, why are you in school?" Professor Lin pushed the reading glasses on the bridge of his nose and pointed to the chair opposite, "Let's sit down first." ”

"Thank you, Professor Lin." Su Liang sat nervously opposite Professor Lin, squeezed the report in his hand with a little bit of strength, and took deep breaths repeatedly before he mustered up the courage to speak.

"I have something I want to ask Professor Lin."

"What do you say, ask for advice, raise my old man, if you want to know anything, just ask, is there any problem in your studies? Look at you, your face is so ugly. Professor Lin teased kindly.

Su Liang smiled embarrassedly, and his mood relaxed a little.

Putting the report on the table, he clenched it in his hand, "I want to know, if it's a tabon neurotoxin, what proportion of poison will be needed to make it so that it won't kill people immediately?" If it is a chronic poison, is it possible to excrete the toxin from the body through serum? ”

"Tacleidoxin? How could you be interested in something so evil? Professor Lin frowned.

Tabang neurotoxin is a neurotoxin widely used in war during World War II, and has become the first choice for military poisons because of its strong toxin, fast action and stable performance.

In times of war, it is not known how many innocent lives were taken.

Even now, such toxins are still famous.

"To be honest, I did know a little bit about Tabong, and you should know that I used to be an analyst in the national chemistry group, and then I became the chief teacher, so I know more about these chemical agents than others."

Professor Lin smiled, clasped his fingers together, and placed them on the table.