初中历史教科书在《秦始皇统一六国》中这样讲秦朝的疆域 :“东到东海 ,西到陇西 ,北至长城一带 ,南到南海。”同时 ,课本所配《秦朝疆域图》两处提及南海地名 :一是秦朝设立的南海郡 ;一是中国南部海域南海。那么课文中涉及疆域的南海是何指呢 ?查《辞海·历史地理分册》[南海 History of junior high school textbooks in the “Qin Shi Huang unified the six countries” in the Qin and Qin Dynasties so that the territory: “east to the East China Sea, West Longxi, north to the Great Wall, south to the South China Sea.” Meanwhile, textbooks with “Qin Dynasty Territory map” two Mentioned at the South China Sea names: First, the establishment of the Qin Dynasty Nanhai County; First, South China Sea waters. So what is the meaning of the text of the South China Sea involving the territory? Check “Dictionary of Cihai history” [South China Sea