怎么计算同期下降率

简介：The three of them arrived at the top of the tower, and there were still the same few mummies as before. However, the space on this floor is only about a hundred square meters, and five mummies surround an exquisite tower-shaped shadow! The small phantom tower hung in the air, as if it was draining the spiritual energy of the five people surrounding him and sucking them to death.