The place Zhang Lianyuan drove to again was... still a hospital!

Of course, he was not without a target. In fact, although Zhang Liang repeatedly said that he would not make baseless guesses, deep down in his heart, he actually already knew who the owner of the hair was, if his guess was correct!

Of course, he was also very confident in his speculation. He came to the hospital now just to add insurance to the result. However, this time, Zhang Badan did not need to do anything too risky, so he did not

It requires too much preparation, even though he always acted haphazardly when he took risks before...

Zhang Bao Liang went straight to the nurse station where he was already familiar with the routine. It was the time for the nurses to take over their shifts in the morning. The nurse station was empty at this time, which just created the conditions for Zhang Bao Bao. He opened the door and walked straight in.

When he arrived at a table, he immediately saw the goal of his trip - a water glass!

This water cup was exactly what Qin Dada had used before. The reason Zhang Liang knew this was because he was there when Qin Dada used it. At that time, Qin Dada was telling him and Bai Jingwen about the old beggar's injury. Although it had already passed.

It has been more than a month, and Mrs. Qin is still missing, but obviously, her personal belongings have not been cleared away.

Since Qin Dada has used this water cup, her DNA must be left on the water cup. As long as it is taken back and tested, it can be compared with the hair immediately. The result is that Zhang Lianyang is also sure that the owner of the hair must be Qin Dada!

Zhang Liang picked up the water cup and left the nurse station directly, driving back to his residence.

He moved very quickly, so it took less than an hour to go back and forth. At this time, Song Dongxi was testing the tube of blood from the old beggar. He felt very surprised to see Zhang Lianyuan coming back so soon.

It was strange, and when I saw the water glass that Zhang Baolian put on the table, I felt even more baffled.

Zhang Liang did not let him waste his brains on guessing, but explained directly. Song Dongxi was a little surprised when he heard it, but he didn't say much.

Zhang Bao took a sip of water, sat down on the bed and asked, "How is it? Is there any result?"

Song Dongxi rolled his eyes and said, "Please, do you think doing a blood test is that simple? My machine has just been set up. Not everyone is so anxious about everything like you!"

Zhang Liang did not expect that his casual question would arouse such strong dissatisfaction from Song Dongxi, so he had to raise his hands to express surrender, and then looked at the machine Song Dongxi mentioned.

Said to be a machine, in fact, in Zhang Liang's opinion, it is nothing more than a microscope and a microcomputer. Looking next to it, Song Dongxi's large suitcase has been opened. It is obvious that these instruments were brought through it.

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However, Zhang Liang was quite grateful for this seemingly crude testing instrument. After all, that was what he said at the beginning, asking Song Dongxi to bring a testing instrument. Unexpectedly, this guy actually brought it.

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At this time, there was a glass slide placed under the microscope. Song Dongxi was fiddling with something and looking up at the computer monitor from time to time.

Zhang Lianyuan said with some curiosity: "So you also use this thing for testing. I thought they were all high-tech instruments now."

Song Dongxi almost put the microscope on Zhang Liang's face, and he said angrily: "What do you think that instrument is, cabbage? You just brought it out as soon as you were told to bring it out? Those are precision instruments from the hospital, and there are several of them in one piece."

One hundred thousand, if it’s damaged, do you deserve it or can I pay for it?”

Zhang Bao Liang was startled by Song Dongxi's reaction. At this moment, Song Dongxi was like a powder keg, igniting everyone. Zhang Bao Bao quickly shut up and did not dare to disturb him again.

Without Zhang Baoan nagging at the side, Song Dongxi's movements were obviously much smoother and faster. But Zhang Baoan was watching boredly, and unknowingly, he fell asleep in a daze.

Zhang Liang was really tired. He had something to do just now to distract his attention, but now that he was free, sleepiness came over him like a tide, so much so that he didn't notice it at all.

When Zhang Liang woke up again, it was almost noon. Rather than saying that he woke up from sleep, it would be better to say that he woke up from hunger. In addition to eating the bucket of instant noodles in the morning, and then serving

One meal was already the few steamed buns outside the hospital. No wonder he felt that he could eat even a cow.

Song Dongxi seemed to have finished the test and was sitting at the table playing with his mobile phone. Apparently he saw Zhang Bao was sleeping soundly, so he didn't call him.

Zhang Baolan started to work and stretched, and his stomach began to growl unsatisfactorily. He said with some embarrassment: "I don't know why lately, I can't stand it when I sleep a little late at night. I used to stay up all night when I was in school.

I stayed up all night and didn’t feel much the next day.”

Song Dongxi curled his lips and said: "That can only mean one thing. When you are old, the elderly must accept their old age and pay more attention to rest. Be careful not to die from overwork!"

Zhang Liang didn't want to continue chatting with him, so he stood up and said, "Let's go and eat."

Song Dongxi said in surprise: "Oh, this is really rare. The first thing you did was not ask me how the test results were?"

Zhang Baobao patted his belly and said, "The test results are important, but if I don't go to eat, I'm afraid you will have to test me soon!"

The two of them found a barbecue restaurant. Zhang Liang finally showed his loyalty as a landlord and ordered two large plates of meat. Song Dongxi was already so hungry that they couldn't even talk. They couldn't wait as soon as the meat was served.

He ate it hungrily.

After eating for nearly an hour, until Song Dongxi put the last piece of meat into his mouth, the two of them ended the lunch with unsatisfied feelings.

Sitting in the barbecue restaurant, Zhang Baoli leaned back in his chair with satisfaction, holding a toothpick and picking his teeth while saying: "Sure enough, people have to eat when they are the hungriest to taste so delicious."

Song Dongxi hit him and said: "If you are in our hospital department, I will keep you from feeling hungry."

Zhang Liang asked curiously: "Why?"

Song Dongxi leaned forward and whispered mysteriously: "Do you know what we test? There are virus-containing blood from patients with blood diseases, ultra-high viscosity urine from patients with severe diabetes, and gastrointestinal tract

Bloody stool from cancer patients..."

Zhang Baojun almost vomited after hearing this, and quickly waved his hand to ask Song Dongxi to stop. He drank several sips of Bingkuoluo, and then he managed to suppress the food that kept rising in his stomach.

After calming down for a while, Zhang Baoan said angrily: "You are sick, I just finished eating!"

Song Dongxi said calmly: "Is this unbearable? If I tell you the test results later, you will have to smoke a cigarette and drink some wine to calm down the shock."

Zhang Zaiou hesitated for a moment, but still said firmly: "Then...can it be the same? I didn't give you the old beggar's urine and...and..." At this point, Zhang Zaiou couldn't go on and felt nauseated.

The feeling came back again.

Song Dongxi looked at Zhang Baoan's look and felt a little funny, but then he became serious again and said: "When you were asleep in the morning, the test results came out. To be honest, you will never imagine this."

What a ‘surprise’ there is inside!”

Seeing how serious Song Dongxi was, Zhang Bao couldn't help but stop joking and asked, "What's wrong? Aren't you just testing the blood to confirm whether the old beggar died of suffocation? Why do you say it as if there is some big discovery."

Song Dongxi nodded and said: "You remember I told you that if you die from suffocation, the blood will be dark red or deep purple. I originally thought that the color of the old beggar's blood was due to suffocation, but I ignored the other

One situation, which is what I detected, is that the old beggar himself is in a state of poisoning!"

"What?" Song Dongxi's words shocked Zhang Liangliang. He never expected that the old beggar could be poisoned. He asked: "You mean, the old beggar did not die of suffocation, but was poisoned and died?"

Song Dongxi shook his head and said, "No, he did suffocate to death."

Zhang Baoan was really confused now. Just now Song Dongxi said clearly that the old beggar's blood contained poison, but now he said that he was not poisoned to death. What on earth is going on?

Song Dongxi may also know that Zhang Baoan's mind must be in chaos at this time. He took the initiative to explain: "Don't worry, I will tell you the test results carefully, and then we will analyze them together."

Zhang Liang tried his best to calm down and nodded. Song Dongxi began to say: "During the testing process this morning, I extracted an extremely deadly poison from the old beggar's blood. After my analysis, I think it may be hydrogen sulfide."

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Seeing the confused look on Zhang Baoan's face, Song Dongxi explained in detail: "Strictly speaking, few people would use hydrogen sulfide as a poison. First of all, it is not easy to obtain. Its main purpose is to prepare industrial reagents.

Of course, it has recently been discovered in medicine that hydrogen sulfide has certain physiological effects on regulating cardiovascular disease and blood pressure, but it is strictly controlled as a special drug, so it is difficult for ordinary people to get this poison. Furthermore, why do you say

Hydrogen sulfide is not suitable as a poison because it has a very strong pungent smell. You know the element sulfur, how should I put it... It's like farting after eating a big fish and meat, almost.

That's the smell..."

Zhang Liang said quickly: "Stop, stop, stop, stop, I understand, please continue talking!"

Song Dongxi smiled awkwardly and continued: "In short, the smell of this stuff is too strong. As long as ordinary people don't have problems with their sense of smell, they will definitely not be stupid enough to inhale this stuff. However, I extracted the sulfide from the old beggar's blood.

The hydrogen content is very small and the concentration is also very low. Although it is not negligible, to be honest, it is difficult to directly cause death of a person. This is also a point that I can't figure out. He is indeed poisoned, but the poison is not

fatal!"

Zhang Bao thought for a while and asked: "What are the symptoms of hydrogen sulfide poisoning?"

Song Dongxi said: "Hydrogen sulfide can mainly affect the central nervous system and respiratory system. If the poisoning symptoms are severe, it can indeed cause suffocation."

Zhang Liang said: "So, the old beggar died of suffocation, but was it caused by poisoning?"

Song Dongxi nodded and said: "I think this result should be the most realistic guess."

Zhang Liang didn't say anything. After a while, he suddenly said: "No, the old beggar's suffocation was not caused by poisoning!"

Song Dongxi was surprised: "Why? How did you know?"

Zhang Liang analyzed calmly: "The old beggar was found and sent to the hospital a month ago. If according to what you said, the poison was severe, he would have died in less than a month. And if he could survive the poisoning,

If you can live for a month, then I'm afraid the poison is not that strong."

Song Dongxi nodded in agreement. Suddenly, Zhang Baolan recalled in his mind what Qin Dada had told him and Bai Jingwen. When they were rescuing the old beggar, they found that in addition to internal injuries to the liver and kidneys, the old beggar also had fluid accumulation in the lungs.

, Thinking about it now, in an instant, the two things were connected in Zhang Baoan's mind. He asked Song Dongxi excitedly: "Will hydrogen sulfide poisoning cause fluid in the lungs?"

When Song Dongxi heard this, he instantly understood what Zhang was thinking. His eyes suddenly lit up and he said, "Yes, one of the moderate symptoms of hydrogen sulfide poisoning is pulmonary effusion. I understand, what you mean is,

The old beggar had already been poisoned before he was sent to the hospital, but the poison was mild, and there was no poison at first. Later, the poison slowly developed, and he was found to be sent to the hospital."

Zhang Liang nodded first, and then shook his head. He felt that his thoughts were extremely clear now, and many previous fragments in his mind came together in an instant. He said: "The night I was injured, the old beggar

He was beaten by a gangster. I think his injuries were caused that night. As for the poisoning..." Zhang Baoyou thought about it carefully, and in an instant, he blurted out: "Lunch box! It's a box lunch! That's why the old beggar was there that night.

He was beaten up by gangsters for a box lunch, and the box lunch was..." At this point, Zhang Lianyuan was suddenly stunned.

Song Dongxi was listening to Zhang Baolan's analysis with great interest. Seeing him suddenly stop, he couldn't help but urge: "What's wrong with the lunch box? Keep talking!"

Zhang Liang said in a low voice: "The lunch box was given to the old beggar by Mr. Qin!"

Song Dongxi was stunned when he heard this answer. After a while, he slowly said: "So, it was Qin Dada who finally killed the old beggar..."

Zhang Baoyou was silent. He didn't expect that things had gone full circle and seemed to be back to the starting point. The previous clues about the ventilator made it seem that Qin Dada was framed, but Qin Dada gave the lunch to the old beggar. This

She admitted it herself, and judging from Song Dongxi's test results, it seemed that the old beggar's poisoning could only be caused by this box of lunch.
To be continued...