任意两个数都有等差中项吗简介：No. Li Chu shook his head and said calmly: There was no one inside, there was only a rather powerful monster. In order to kill it, I had to use a slightly heavier sword to kill it.
No. Li Chu shook his head and said calmly: There was no one inside, there was only a rather powerful monster. In order to kill it, I had to use a slightly heavier sword to kill it.
