10个数复式二中二有多少组怎么算

简介：Another method is to dig the base of the wall. After digging a big hole under the base of the wall, put jars filled with gunpowder one jar at a time, then put in torches, ignite the gunpowder, cause an explosion, and blast open the city wall. Li Zicheng also gave this method a very unique name, called Fangfeng.