) are all extra timid compared to the black mamba and possess not been documented to attack individuals. Such as black mamba, they may flatten their necks into a slender hood as being a defensive posture.想象一下我们正在穿过一个迷宫，图中每个小框代表迷宫中的一个位置，并附有某个隐式的信息，例如你距离�