（一）迷雾浓厚蒙山城t湘西自古以来就是一块神奇的土地，文革时期，在湘西腹地的慈利县修建的一座代号为“８１１”的工程，更是在人们的心中盖上一层神秘的面纱。t１９６６年文化大革命开始以后，中共湖南省委副书记王延春带上省公安厅厅长高文礼及几名高级工程师在全省范围内 (A) thick fog Mengshan City Xiangxi since ancient times is a magical land, during the Cultural Revolution, in the hinterland of Western Cixi County, built a code-named “811 ” project, but also in the hearts of people covered with a Layer mysterious veil. In 1966, after the completion of the reform of the petrochemical industry, Wang Yanchun, deputy secretary of the CPC Hunan Provincial Committee, took Gao Waili, director of the Provincial Public Security Bureau, and several senior engineers across the province