9个数字有多少种组合4位密码

简介：Seeing that everyone else had left, Duan Biao no longer stayed. He strode into the cabin, took off the torch on the bulkhead, lit the fuse of the tung oil barrel, then turned around and ran out of the cabin, holding a shield, and slipped away. Jumping from the bow of the boat into the canal, the water splashed, and the others disappeared in the blink of an eye, leaving only the shield floating on the river.