四个数字有多少种组合两位数

简介：Mo Xiaoqi came to the open space in front of the thatched house and sat on the ground. Lightning didn't know where he was practicing, so he didn't see it. Using his own spiritual energy, he built a spiritual energy pill furnace. The medicinal materials were suspended in the air. Mo Xiaoqi used the fire element in the spiritual energy to continuously burn around the medicinal materials. The medicinal materials gave off a burnt smell and were scrapped.