10个数字选3个有多少种组合

简介：In the morning, a Beijing camp commander suddenly rushed out of the city with hundreds of Beijing camp soldiers and sealed the city gate. Then, a large group of officials in scarlet robes and blue robes together with a dozen eunuchs and eunuchs appeared at the city gate, and finally stopped outside the city gate on the drawbridge, looking eagerly towards the official road to the south.