3d怎么计算下期的跨度

简介：Ma Shaoyu, a doctor in the Ministry of War's staff, nodded slightly. At the beginning, he was ordered to evacuate the soldiers and civilians in Xingshan and Tashan, and he shared the hardships with the Tong family and his son. Tong Dingfang became the prince's lieutenant officer, and it was also due to his recommendation. Today, he was very pleased to see Tong Dingfang making such rapid progress.