Kao yan zheng zhi kao qian yu ce bi bei 20 ti

Ben shu shi yi tao wan zheng de zhu guan fen xi ti jie jue fang an. zuo zhe tong guo dui guo nei wai shi shi re dian cai liao de zong jie he fen xi, jin mi jie he shi ba jie wu zhong quan hui de hui yi jing shen, jia zhi dui kao yan zheng zhi da gang de zhun bei ba wo, gei chu 20 ge zhuan ti, gong kao sheng zai zui hou 30 tian bei song zhi yong. Can jia kao yan de xue sheng.