7个号码二中二有多少组

简介：——Li Dingguo blocked the way on the other side, and the road upstream was difficult. Huang Degong and Liu Liangzuo were also there. Although the Ming army had not yet been found downstream, the downstream was close to the sea. The river was wide and the tributaries were dense, making it impossible to march. The Ming army and Zha Sa were pursuing from behind. The Ketu cavalry will attack at any time. How to resolve such a critical situation?