she is sweeter than sugar

"Sorry," Liu Li said to Chen Wei, "It's just that I don't know how to judge now, so I have to tell you everything from beginning to end."

Of course, the judgment itself is not up to him.

Chen Wei expressed her understanding.

"After that..." Liu Li's eyes turned to Wang Taiqing again, "Taiqing made me a cup of coffee."

Wang Taiqing also nodded, and said very calmly, "I did make him a cup of coffee, and I drank it myself."

He pointed to the lounge next to him, "The coffee machine is right there, and I use the ingredients from it."

Liu Li walked over and took out his cup.

There was still some coffee left on it.

Professor Fang immediately sent someone to be tested.

Then, Liu Li reported the names of several colleagues, but Yang Gaoxuan was not among them.

In other words, Liu Li never ate anything sent by Yang Gaoxuan.

From this point of view, it seems that the reason why Liu Li fell asleep had nothing to do with Yang Gaoxuan.

But coffee is something refreshing, and it seems that it has nothing to do with drowsiness.

But on the other hand, it seemed that only this class of people seemed strange.

Liu Li and Wang Taiqing looked suspiciously at Yang Gaoxuan all the time.

He appeared in the laboratory by such a coincidence, and he stayed in the laboratory for a while alone. Judging from the scene, his suspicion is the biggest.

And Yang Gaoxuan also felt that there was a real problem with these two talents.

Seeing them looking at him with uncomfortable eyes, Yang Gaoxuan sneered.

"I think the two of you are obviously working together? Could it be that the two of you have already discussed and collude to steal the medicine to Professor Sun, and then deliberately took that medicine to clear yourself of the suspicion? And then the time after you go back like this Send out the potion!"

Wang Taiqing couldn't help but said, "If you don't come, no matter how sleepy Liu Li is, he won't be able to leave. The surveillance in the corridor is not broken, and the time records of his videos are all normal. Could it be possible? You also worked together with us? That's why you came here at that time, what do you say about that?"

"But you have plenty of time to commit the crime. First, you changed the potion during the time when I sent Liu Li away, and then connected with the respondent after the end of duty, and asked him to take the potion away. It's perfect, isn't it?"

The veins on Yang Gaoxuan's forehead popped up, and his face was also flushed.

Professor Fang frowned.

"Yang Gaoxuan left together after he was on duty with Wang Taiqing, and then he held a meeting with the dean when the third round of duty just started.

Calculating the time, there was only less than an hour difference between them. "

One hour is definitely not enough time for Yang Gaoxuan to take the medicine out of the laboratory, and then let the "handover" Nei Ying bring the medicine to Professor Sun.

The time spent on the road alone is more than an hour.

So according to this, Yang Gaoxuan is no longer suspected.

On the contrary, Liu Li...

Liu Li couldn't help panicking, "I really didn't, I was really sleepy, and at that time I went to sleep directly after arriving in the dormitory, and didn't do anything else at all!"

Professor Fang was just silent for a while and didn't speak.

When the people in class 3 explained, they also indicated that the two of them had never left from the beginning to the end, and nothing happened.

Gu Ci, "So, the two of you didn't realize that the medicine in the machine had changed?"

As soon as these words came out, the brows of the two couldn't help but wrinkled.

That's right, when they were in the laboratory, they clearly detected that there was nothing wrong with the medicine in the machine, otherwise they wouldn't have been on duty for more than an hour in a daze, and they didn't find anything.

But if this matter was done by one of Liu Li, Wang Taiqing, or Yang Gaoxuan, then when they arrived at the laboratory, the medicine inside should have changed.

But no.

After that, Mr. Yuan and Professor Fang hurried over and started the emergency meeting notice.

At that time, Professor Sun was already holding the potion.

The people behind naturally ruled out the suspicion.

Could it be that their guess was wrong?

Everyone's thoughts were chaotic.

If the current situation is based on the transmission time, Liu Li should be the most qualified person.

But if you look at some strange things, such as having a period of alone time and suddenly running to the laboratory, it seems that Yang Gaoxuan is more suspicious.

Everyone couldn't help but waver between the two of them.

The matter in front of me seemed like a mess, the more I tried to sort it out, the more chaotic it became.

All they can do now is wait until the test results come out.

And soon, the test results came out.

There is no special substance in Liu Li's coffee cup, and it is not true that Wang Taiqing caused him to fall asleep.

Professor Fang looked at Liu Li's eyes and couldn't help showing a little disappointment.

Liu Li opened his mouth, but found that he seemed to be at a loss for words now, and all the evidence turned to him at this moment.

"It's really not me!" Liu Li's expression was a little broken.

Things seemed to be at an impasse.

Professor Fang first controlled everyone except Yuan Lao and Gu Ci. His head hurt and his mood was extremely complicated.

Gu Ci tapped on the table, seeming to be thinking about something, but didn't speak for a while.

After a while, she spoke.

"Is it possible that our thinking is wrong."

Professor Fang looked towards Gu Ci.

"If we follow the passage of time when Professor Sun obtained the potion, then the person who had the time to commit the crime must be before Liu Li."

"But what if...Professor Sun didn't actually get the potion? If so, the potion must still be in this laboratory."

Hearing this, Professor Fang stared at Gu Ci in a daze, and it took him a long time to come back to his senses.

indeed.

They are likely to fall into a misunderstanding of thinking.

They always thought that Professor Sun had already obtained their medicine.

Then there must be someone cooperating inside and outside this closed area and sending the medicine out.

But what if...

That person just changed the potion in their machine, and hasn't sent out the real potion yet?

Professor Sun said that the medicine is in his hand, but it has not been officially used yet.

In the middle, there is actually a time gap and a gap in information.

And this information is poor, it is very likely that they will perfectly exclude the person who really betrayed...