九个数字选三个有多少组合

简介：At this time, there are still seven disciples of the Blood Demon Sect, three of whom are the geniuses of the inner sect of the Blood Demon Sect, and their strength is close to level 50. So many people have died without any gain at all, so let them just... Naturally, they were very unwilling to retreat. After some discussion, they attacked again, but this time they were more careful.