任意两个数都有等差中项吗简介：Next to Jin Qianxue, a figure maintaining an attacking state materialized. The figure stared at the dead body inside and outside with a pair of fierce eyes and said: Sister Xue, long time no see:
Next to Jin Qianxue, a figure maintaining an attacking state materialized. The figure stared at the dead body inside and outside with a pair of fierce eyes and said: Sister Xue, long time no see:
