It's not too late to meet

A musty smell of rotten hay and rotten fruit.This gas is toxic and corrosive. Generally speaking, when the concentration of phosgene reaches 15 to [-] mg per cubic meter, it can cause people to stop breathing and heartbeat within [-] minutes. "

Yang Lu, "Wow, chemical weapons."

"You can say that too."

"Where can this gas be obtained?" Yang Lu asked intently, taking notes.

"Phosgene synthesis experiments are difficult on a large scale, but the doses used in Lao Wang's house can be done in general chemical laboratories."

Yang Lu, "Can the chemical laboratory of your university also do it?

"can."

Yang Lu basically thought in a straight line, "Then Wang Xuedong?" She meant whether the phosgene that killed Wang Xuedong's wife and daughter came from our school's laboratory.

I knew she would think that Wang Xuedong was disgusted for a while, so she smiled softly and said, "Our laboratory is strictly managed and monitored, and any experiment will be recorded in the book. If Wang Xuedong makes light in the laboratory of our school If Wang Xuedong wants to poison his wife and daughter with phosgene, even if he spends a lot of money to bribe all relevant personnel, he may not be able to seal the mouth of others. Most importantly, if Wang Xuedong wants to poison his wife and daughter with phosgene, he has many ways, and he does not need to use his own range hood at all. That’s the stupidest way.” It’s strange why Xu Nuo has been silent?I stood up from the computer and looked in her direction.

Yang Lu lowered her head and recorded fiercely, "Why, Professor Fang?"

"Because it's very dangerous, phosgene needs to be stored in a steel cylinder..." Xu Nuo was staring at me blankly, her eyes were full of water vapor, I was worried that the water vapor in her eyes would condense into tears in the next second, why do you do that? sad?Can't half a box of chocolates and Anandamide save her from a bad mood?I also stared at her in a daze, my heart constricted a little bit, she couldn't really be angry with me because of porridge and medicine?I want to say that I didn't mean to, no, I did, but that's because ~~ yeah, I can't tell her anything.But I swear, when I did that, I didn't know that it would make Nuonuo so sad. I originally did it to prevent her from being sad in the future.

Xu Nuo avoided my gaze, and casually flipped through a book on my desk. It was a large reference book I often used, and it was impossible for her to understand it.

I stopped suddenly, and Yang Lu asked, "Professor Fang, are there any more? Why is it dangerous?"

In front of Yang Lu, I had to hide it, grabbed the thermos bottle, refilled her cup with some boiling water, and continued, "Poisoning through the exhaust pipe of the range hood must take into account the wind direction and climate. Once the wind direction deviates, or Blowing air in the opposite direction can easily injure the poisoner. As a chemical practitioner, Wang Xuedong is well aware of the advantages and disadvantages, why would he take such a big risk and choose to poison the exhaust pipe of the range hood?"

Because the clues were clear, Yang Lu cheered, "That's right, we didn't expect so much, Nuonuo, this has to be an expert, right?"

Xu Nuo responded concisely, "Yes."

Yang Lu, "Professor Fang, according to your analysis, who might be the poisoner?"

Suppressing the countless emotional undercurrents that were involved in the promise, I was in a panic and couldn't bear it. I tried not to look at her, looked through the case materials in my hand again, and quickly concluded, "First, the criminal himself must have considerable professional knowledge in chemistry. Ensure your own safety during the poisoning process; second, according to the living conditions of Wang Xuedong's house, phosgene can enter the room through the flue only when the north wind and northwest wind blow, and the poisoner must have sufficient meteorological knowledge. Third, since the phosgene synthesis experiment can only be done in a laboratory, the perpetrator must have connections with a private laboratory."

"Great, Professor Fang, is there any more?"

I went through my thoughts again and decided, "For now, that's all I can think of." The phone rang, and the lab asked me to go over, "Right now." I put down the receiver, and promised to stand in front of me, Just now she was about to cry, she was cleaned up, and she regained her crispness, bright eyes and white teeth, and a document was handed to me, "According to legal procedures, the experts who give us professional advice need to sign this document, Professor Fang can find time Read the terms clearly before signing, and call us after signing, and we will send someone to pick it up."

"Oh, good." My voice was weak. It was obvious that this meeting was coming to an end, and she was about to leave. I couldn't bear it.I have to find something to talk about, even if it's good to stay with her for a second, he said, "If you need anything, you can call me, and you don't need to send a formal letter of introduction."

Yang Lu interjected, "I called you." Then she shut up as if realizing something.

I was tongue-tied at the promise, yes, she called, but I asked the students that all women and people with the surname Xu who came to look for me would say that I was not there.

"I called several times, and your student said you were not here," Xu Nuo smiled, looking at me without avoiding it, and she helped me find a reason, "I guess Professor Fang has not recovered from his stomach flu, so he went to the bathroom The number of times is too frequent."

Irony, sarcasm, I can hear that she is really blaming me~~ I am speechless, to a certain extent, isn't the current situation exactly the result I wanted at the beginning?Decided to remain silent, lowered my head to avoid, put the document she gave me into the drawer, "Okay, I will notify you when the document is signed."

Xu Nuo stood in front of the desk, made small movements, and looked into my drawer. Apart from documents, there were books and office supplies. What is there to be curious about?I couldn't help but ask with my eyes, what's wrong?

"Didn't you say that you put your ex-wife's photo in the office when you were eating?"

Her attack power is really comparable to that of the entire fleet. What is the consultation here today? It was clearly a scene of trouble. I was forced to nowhere by her, and my palms were sweating. Find a Ziwu Maochou about the photo, and I'm sure, "Aren't we talking about bookmarks?"

Xu Nuo tilted his head and raised his eyebrows, "Isn't it just one thing?"

I'm depressed, yes, one thing!It was I who admitted in front of Xu Huaiyuan that I used the photo of my ex-wife as a bookmark, and the stone I moved is now hitting my foot, I have to bear it, stand up straight, and promise back, "So?"

"Lend it to Yang Lu to see, she doesn't quite believe it, she looks similar to your ex-wife."

Yang Lu was collecting case materials, she couldn't bear it, she resisted, and frowned at Xu Nuo, "Nuo Nuo, what are you doing?"

Even if this is a hole I dug and buried myself in, I can't help but fill in the soil myself and hold on, "Maybe Yang Lu wants to see it?"

Xu Nuo stared at Yang Lu, oppressed, and told me, "She wants to see it, she's curious."

I'm sure Xu Nuo is playing tricks, but I really don't want her to be the ghost I thought of.I slowly pushed the drawer in, slowly locked it, and said slowly, "But, I don't like to show Yu Su's photos to irrelevant people."

Xu Nuo's complexion became pale and pale as I spoke slowly.

I made up my mind, walked to the door of the office, and opened the door.

Yang Lu held back the promise, maintaining her politeness, "Thank you, Professor Fang, for interrupting."

I also maintained my politeness, "You're welcome, it's a great honor to have the opportunity to serve you."

Xu Nuo and I never looked at each other again.

Going back to the laboratory, he hurried upstairs, bumping into the head of the department and his secretary.When the secretary saw me, he complained, "I was looking for you, what happened? Didn't we make an appointment to have lunch in the restaurant? Captain Xu and the others?"

Eating at a restaurant?I was confused, "Is there such a thing? When did you make an appointment? Why didn't I know?"

The head of the department had a headache, "Old Fang, it's almost eleven o'clock in the morning. I made an appointment with you on the phone. Didn't I say that you would accompany Captain Xu for me? I have another table to entertain in the restaurant at noon. As a result The restaurant has been waiting for you all the time, but I didn't see you taking Captain Xu there, what happened? Where is Captain Xu?"

Oh, I was absent-minded during the phone call in the morning, and I didn't hear the important part, "I'm sorry, uh~~" I corrected, "Let Captain Xu have lunch in the cafeteria. Now they have left."

"He's gone?" The head of the department couldn't believe it, "Did you eat in the cafeteria?"

I was very calm, "Yes, Captain Xu appreciates the pancake fruit."

The secretary repeated, "Pancake fruit? Lunch?"

"I also bought other vegetables and rice, but I didn't eat much." I also felt that Xu Nuo should not be too full, and the nutrition didn't seem to be enough, and I was even more depressed. I bowed to the director and planned to leave. Waiting for me.

The director got excited and stopped me abruptly, "Lao Fang, Lao Fang, Lao Fang, wait, how did Captain Xu and the others consult with you? What did you say?"

"Let's be honest, the criminal should have injected phosgene..." I explained to the head of the department what I explained to Yang Lu as briefly as possible.

The head of the department and the secretary nodded as they listened. From the professional point of view, they agreed with my analysis, but in the end, they said, "That's it?"

"Yeah." I'm going to leave again.

The head of the department stopped me again, worried, "What about Wang Xuedong? What do they think of Lao Wang? The reception at noon is so simple..."

I finally understood what the director meant, and hurriedly said, "Don't worry, Captain Xu won't aggravate the suspicion of Lao Wang just because of the simple lunch. In fact, they should give up the suspicion of Lao Wang when they come here. "

Director, "Really? Are you sure?" He seemed to have lost any confidence in my ability to handle affairs.

"I don't dare to tell others, but if I promise, I'm sure." I raised my wrist to look at my watch, "Sorry, I'm in a hurry."

At night, I had to work overtime, worrying about the risk of a sharp drop in vacuum during the vacuum distillation process.