After Binding the Exchange System, Turn It over to the Country to Become the Richest Man

Ye Muqing was suffering from cancer and was abandoned by her biological mother who favored boys over girls. She lay in a rented house waiting to die. Extremely unwilling, she was bound by the sudden interstellar replacement system! A bouquet of flowers at a special price was exchanged for Interstellar A-grade repair fluid. Not only were the cancer cells on her body completely removed, but there was no damage to her body. The system told her that because the little broken ball was attacked by aliens in the future and no culture was left behind, it bound her in exchange for ancient earth culture. Ye Muqing's raging patriotism aroused. Since she could exchange interstellar items, be bold, couldn't she exchange interstellar battleships and hand them over to the country? The next second, a new replacement task, exchanging items with the ancients. How many millions would a bowl of noodles be exchanged for a peerless painting? It turns out that the replacement system can not only be exchanged with the stars, but also with ancient people! What? "Yongle Dadian" and "Qingnang Shu"? Ye Muqing was even more excited! Change! Must change! ! She has to exchange all the essence of ancient times and the future, and it is bound to revitalize the technology and civilization of the little broken ball, and change the future fate of the small broken ball being destroyed after being attacked by aliens!