Li Mengtian watched coldly, but he didn't have the anger he had before, but he felt that the man slapped his face and crackled, and his heart was extremely happy.

The woman was a little anxious and kept looking at the man, expecting the man to solve the problem as soon as possible, and at the same time she was a little confused.

Gu Xuan's face did not change, and he knew it in his heart.

Silence spread among the four, and the man was in a cold sweat under the gaze of the three, constantly wiping his sweat.

Gu Xuan broke the silence: "Excuse me, have you solved the problem?" ”

"I... I—" The man replied hesitantly, his eyes no longer full of pride, only embarrassment. After a while, I finally became discouraged and said, "I'm sorry, I couldn't find the problem, it's because I can't do it." ”

Gu Xuan didn't say anything, just took the things in the man's hand and continued to study.

The man stood awkwardly on the side, always looking at Gu Xuan's research, he had already admitted that his ability was not good, and now he only hoped that Gu Xuan could solve the problem and let himself understand his shortcomings.

Time seems to have passed a long time, and it seems like it is only for a moment.

Gu Xuan's eyes were a little clear, and the corners of his mouth were slightly hooked.

Li Mengtian was the first to notice Gu Xuan's smile, and immediately said, "Xiaoxuan, have you found a problem?" ”

"Hmm" Gu Xuan smiled, as if he was glad that he had found the problem, but no one saw the irony under the smile.

The man then asked eagerly, "What's the problem?" ”

Gu Xuan's smile had faded, revealing a hidden anger, although it was not shown on his face, his eyes were with a slight chill, the man and Gu Xuan looked at each other, only to feel a cold on his body, and he swallowed his saliva unconsciously, reflecting on whether he had said something wrong, and after thinking about it, he still didn't figure out what was wrong with his words.

"There were no problems with all the parts, and there were no problems with the assembly of the notebook."

"What's going on?" The man was somewhat stunned when he suddenly heard Gu Xuan's answer.

Gu Xuan raised the part in his hand, "The key is this"

"Xiaoxuan, didn't you say that all the parts are fine?" Li Mengtian was completely confused by Gu Xuan.

"There is no problem with this part itself," Gu Xuan paused, and continued, "But, it won't work when combined with other parts."

"You're saying that this part can't keep up with the other parts?" The man seemed to understand something, but he couldn't figure it out, "It's impossible, even if the performance of this part is not top-notch, it won't be so bad."

Seeing that the man didn't believe it, Gu Xuan handed the thing in his hand to the man's eyes, pointed to a subtle place and said, "Take a closer look."

The man looked at it for a long time, and suddenly his eyes widened, and he said, 'Impossible'.

"Heh, I'm going to ask you" Gu Xuan stared straight at the man and woman, his face was like a layer of frost, and anyone who bought a fake would not be in a good mood.

The expressions of the man and the woman became serious, and the woman bit her lower lip and said, "I'll go and change it again" and turned to leave, leaving the three of them standing in an awkward manner.

"How could such a thing happen" Li Mengtian was very puzzled.

Gu Xuan noticed Li Mengtian's doubts and understood that she was not questioning her conclusions, but felt that it was strange that there would be such a serious problem in this store.

"Mengtian, is there any more questions?"

Li Mengtian hesitated for a while and said, "This is a shop opened by my cousin's friend, and I am quite familiar with him, I don't think he is that kind of person." ”