一级理论和二级理论的区别

Zhang Lei finished his instructions and left with a sullen face. Today's team is no longer what it was when it was first established. Now the team's strength is extraordinary, especially under the training of Yi Xingchen and others, with intelligence, assassination, tracking, etc. If they are not good enough to investigate this murder case, they may not be able to make any concessions compared to experienced police officers....