I Engaged in Black Technology in Ancient Times

Li Xiang, a poor student, fell asleep during the college entrance examination, and when he opened his eyes, he transformed into an ancient beggar. There was only half a 2B pencil left in my pocket. What are you afraid of? Science thinking + hand rubbing Plug-in, take off directly: tap water in bamboo tube, function solution for fields, Fingerprints solve counterfeit cases, alcohol saves the plague, bicycle racing, fluorescence Ink anti-counterfeiting... Harvesting "prodigies", "fairies" and "little gentlemen" along the way The title, by the way, captured the hearts of everyone. Take the imperial examination and get practical results He wants to gain a lot of money, and his enemies are plotting against him? He will use science to teach him how to be a good person! The ultimate trick: drag your family back to modern times, sell goods through live broadcast and create business Industry Empire——From a poor student to a dual time and space boss, he used black Technology turns history into a fun cheating article!