"This is ......" "This is mine" Wang Lei grabbed the card before Fan Tong stretched out his hand, and protected it in his arms. Pen? Interesting? Pavilion wWw. ｂiquge。 info "Who's going to steal your cards!" Fan Tong glared at him unhappily, "I mean this" and pointed to the melted part of the plastic bag, on which a round thing was glued, like a large bottle cap. "What?" Wang Lei followed her gaze, ripped off the things stuck to the plastic bag, and handed it over. "Isn't this just a valve on an oxygen cylinder?" Zhan Peng took a closer look, unimpressed. "Are you sure?" Fan Tong held up the thing in his hand to show him. "Of course! I don't know this, you are a medical school for nothing" Wang Lei also carefully identified it. "Are you really medical students?" Fan Tong took two steps back and looked at the two of them, shook his head, as if he had answered himself. "Hey! What do you see? Medical school is not a film and television school, so what does it matter if you look at your looks!" As soon as Wang Lei said this, he regretted it a little, isn't this a default that his appearance is not high, and he can't think of anything to save for a while, so angry in his heart!

Fortunately, Fan Tong was just amused by him and didn't take the opportunity to ridicule them. "Since you are studying medicine, it just so happens that I really want to ask, what will cause the oxygen cylinder to explode?" Putting away her smile, she asked solemnly. "Those who study medicine are not ...... who specialize in making medical equipment" Wang Lei began to shake his head again, to put it bluntly, he just wanted to say that he didn't know, but he felt that he had lost face. The explosion of the oxygen cylinder is a physical explosion," Zhan Peng thought for a while and replied solemnly, "Generally speaking, there are two ways to produce this situation, one is that the gas pressure is too large, and the shell cannot withstand the explosion, simply put, it is the same as blowing a balloon, and the gas inside is so much that the skin cannot accommodate it." The other is that the temperature of the cylinder itself increases, but it is generally difficult to do so due to the thickness of the oxygen cylinder. But...... If the pressure valve is close to full, it is easy to catch fire, when the temperature reaches about 800°C, the bottle will explode, and oxygen is the perfect accelerant, once it catches fire, the fire will be difficult to control. "That's it, I know this~" Wang Lei started an afterthought, "You know? You don't say it! "I didn't understand what you were trying to ask!" was choked by Fan Tong, Wang Lei was a little embarrassed, and he was desperate to make excuses. Fan Tong ignored him and paced to himself, "Your second statement is also the police's speculation now, but is it really just the hospital's negligence?" She looked at the ruined ward that had been extinguished by the fire, thinking of Hao Renyi, who had last come into contact with Han's father, and the face of the gentleman with a human face faintly appeared in front of her, she was a little confused, did it really have nothing to do with him?

"It's dirty! Is there a tissue, give me one" Wang Lei spread out his palm at Fan Tong, and a black oily stain the size of a fingernail stuck to his palm. Fan Tong thought about things in his heart, and mechanically took out a pack of tissues from his trouser pocket and handed it to him. "Oil?" Zhan Peng stared at the dirty thing and muttered quietly. "Did you think of something?" Fan Tong stared at his eyes, full of anticipation. Zhan Peng didn't make a sound, his eyes stopped on Wang Lei's hand, and he quickly searched for information about oil pollution in his mind, "That's right" Suddenly he seemed to remember something, and the speed of his speech unconsciously accelerated, "If the oxygen cylinder is mixed with or stained with grease, the grease and compressed oxygen will oxidize and burn quickly after contact, releasing a large amount of heat, so that the temperature will rise, and the pressure in the bottle will also rise." As soon as the pressure exceeds the limit of the cylinder, it will explode. "So, this is not an accident of negligent management of the hospital, but a murder that someone has carefully premeditated!" Fan Tong happily held Zhanpeng's hand, his eyes were full of excitement to find a breakthrough, and Zhanpeng was also immersed in the joy of clearing his head. "Ahem!" Wang Lei rolled his eyes, coughed dryly twice, and the two people who were stirred up and came back to their senses suddenly let go of their hands in embarrassment.

"It's too late, let's go back first! I'll find a way to investigate the oxygen cylinders tomorrow!" Fan Tong turned his back to them and walked towards the gate. "Okay" Zhanpeng agreed, and followed not far behind. "K, what's the situation? Am I being fed dog food? Wang Lei scratched his hair suspiciously.

Back at the hotel, Dai Min came with new news, Hongkai Villa unfortunately lost her birth named Wang Ke, coincidentally, she is the former secretary mentioned by Secretary Qian before. According to the security guard of the community, Wang Ke moved here about a year ago, and heard that her husband was out on business all year round, so he rarely came back, so that no one had ever seen the male owner of the house. However, the cleaning aunt who is responsible for cleaning the park has bumped into her several times, and a gray BMW sedan has come and gone in and out of the park to pick her up, but unfortunately she has never seen the appearance of the car owner every time, and it is only roughly determined that it is a man in a flash, so some aunts who love to chew the root of the tongue privately rumored that Wang Ke may be the mistress of the golden house. It wasn't until a few months ago that Wang Ke's belly was getting bigger and bigger, and it was seen that she was pregnant, and even so, she still didn't see her family and came to take care of her. Except for the hourly workers who come to clean every few days, she is the only one who lives here. After Wang Ke unfortunately fell and died, the police intervened to learn that the owner of the house was Wang Ke herself, and after investigation, it was found that she had not registered her marriage at all, so it confirmed the aunts' speculation, which also made them happy. Dai Min knew that Zhanpeng and they had been investigating Hao Renyi, the boss of the Han Group, and this time she learned about Wang Ke's identity, which made her even more suspicious, and she guessed that the two villa murders were not a coincidence.