阶梯式倍投方案有用吗简介：Three days passed in a blink of an eye. Behind Qinglong City, where Qinglong Academy was located, in a cleared mountain range, all the students taking the exam were gathered together.
Three days passed in a blink of an eye. Behind Qinglong City, where Qinglong Academy was located, in a cleared mountain range, all the students taking the exam were gathered together.
