大小单双公式规律

简介：Presumably when the poisonous gas was generated just now, someone must have stepped on the mechanism outside, which triggered the iron rod to rise, causing a large amount of orange-yellow powder in the iron nest to slide down, and the huge amount of poisonous gas was generated when it encountered the unknown liquid, and The small thin layer of powder in the iron nest now is some residue stuck to the bottom of the iron nest.