C461 A Mouse Poop Is Broken

Yang Xiaoquan wasn't very satisfied with his answer, "But even if no one cheated, you can't prove that those patients were never sick!"

"The past cannot be proven. I just need to prove what the present patient is. That's why I asked Elder Yang to come forward and invite Zagu and Mr. Zhang to discuss it and directly carry out a live person test. The answer goes without saying