反倍投法是怎么操作的

简介：Seeing that the refugees were in disarray and all the shield chariots were about to fall into the hands of the government troops, Li Yan became anxious. He didn't care that he was under everyone's suspicion. He quickly came to Li Zicheng, clasped his fists and said: The matter is critical, please do it immediately. Order, pull up our artillery team.