Gong cheng di zhi xue

Ben shu xi tong di chan shu le gong cheng di zhi de ji ben yuan li, di zhi zuo yong, tu mu gong cheng ji dao lu, gang kou deng gong cheng di zhi wen ti ji qi kan cha ping jia deng, quan shu gong fen 7 zhang, bing fu you gong cheng di zhi shi yan nei rong. shu zhong xu shu le gong cheng di zhi he shui wen di zhi de ji ben zhi shi, yan shi gong cheng te xing, bu liang di zhi xian xiang, gong cheng di zhi yuan wei ce shi he kan cha yi ji ge lei di zhi wen ti dui gong cheng ying xiang de fen xi, ping jia he dui ce.