Nowadays, the biggest difficulty lies in the practical examinations of DNA molecular remodeling and virus theory, which require self-made viral DNA samples, which require a very proficient grasp of knowledge, and the production equipment is all in the school's real room.

Theoretically, this is not impossible, but there is a delay of a few seconds to travel back and forth and access items from the Void Warehouse, and if someone finds the device disappearing out of thin air for a few seconds, it becomes complicated, so this method must not be used.

"That's it! I sent a message back to Zhou Xiaoqian, saying that I had been paying attention to her for a long time, this girl was crazy with happiness, and asked me to eat after the exam! What do you think? Efficiency! Chen Lu looked at Zhang Yuntian happily, but found that the latter was frowning for the final exam.

It's no wonder that after skipping class for so long, I finally became a good student and obediently took a class, but the first class became the last class, and the end of the class was over, and no one had to be depressed.

He patted Zhang Yuntian on the shoulder heavily, "Master, don't panic, the apprentice knows that there is a place to sell artifacts for practical exams!" ”

"And this kind of thing? Can practice exams also be solved? Zhang Yuntian seemed to see a glimmer of light again in the darkness, and complained: "Do you know that there is such a thing that I didn't say it earlier, and I was worried for a long time?" ”

"Hehe, that artifact is not cheap, the little brother who sleeps next door cut the price for a long time, and finally scraped together 5,000 contributions to buy it, if you don't have more than 100,000 in hand now, I wouldn't dare to mention this stubble! Hehe, by the way, I can borrow it too! ”

Chen Luxing rushed Zhang Yuntian out of the school gate, and turned into an abandoned underground passage, which used to be a temporary shelter connected to the lower air-raid shelters, but now that the war has subsided for hundreds of years, it has evolved into a second-hand second-hand market.

The spacious but somewhat dimly lit underground passages are bustling with people, most of whom are young people, and because of the many strange functions of the ancient equipment, even if most of them are not practical for today's society, they are enough for young people who like new and exciting activities.

On both sides of the passage, there is a row of illegally built tin houses, and there are all kinds of signboards at the door, probably because there is no extra power supply equipment, so the signboards are painted and graffiti, which looks very simple.

The second-hand second-hand goods market is mainly sold in equipment, a large part of which belongs to the products that were eliminated hundreds of years ago, and there are some ancient technology learning manuals, if you are lucky, you can even receive inventory products, those technology backward but barely able to use ninety percent of the new equipment.

Chen Lu and Zhang Yuntian came to the door of a dilapidated shop, and the signboard read "DNA real yàn equipment clearance" in a few eye-catching big characters, but the face of his house was extremely small, and these ten words were divided into three lines before they were barely written.