3个数字4个一组有多少组

简介：The two of them, wearing the military uniforms of the 70th Army, were of course unobstructed along the way. When they approached the division headquarters, they saw that there were not many people in the division headquarters at this time. Only the lights in the combat conference hall on the second floor were still on. Look. Teacher Wang must be inside. He is the only one who is still not resting at this hour.