5个数字三中二有多少组

简介：In the blink of an eye, Kaifeng was on the verge of collapse, but it remained unbreakable. Under strict military orders, the refugees and ambushes he broke into the camp attacked Kaifeng round after round, turning the four gates of Kaifeng into a mountain of corpses and a sea of ​​blood. They dug tunnels, dug city walls, and tried all kinds of methods, but Kaifeng City still remained motionless.