9个数复式三中三多少组怎么算

简介：In March 1645, the Qing army surrounded Yangzhou, and Shi Kefa ordered nearby troops to be stationed for reinforcements. Only Liu Zhaoji's lone army arrived and entered the city to guard the north gate. After the city was defeated, Liu Zhaoji led 400 people to fight to the death with the Qing soldiers, killing hundreds of people. Outnumbered, the entire army was finally wiped out. Lieutenants Yi Bangcai, Ma Yingkui, Zhuang Zigu and others died together.