单双出现的概率是多少

简介：Zhu Cixiang already had the long bow in his hand, and the enemy was coming straight in front of him. He shouted loudly: Hold on, hold on, let the archers release their arrows! Then he unfurled his bow and nocked an arrow, pulled the bow string fully, and with a bang, an arrow shot out, hitting an enemy cavalryman who was in the front and had just entered the shooting range under his horse.