征服者无畏前行，勇闯未知天地。青海省会是哪个城市

　　Constantinople has been besieged many times over the centuries; but neither the bulls were able to open a single breach in their strong walls, nor did the giant chain of Golden Horn embark on the enemy ships. Moreover, If Mehmed wants to get this city, he has to fight not only against the Byzantine Empire and the Christian world behind him, but also against the greatest opposit... (展开全部)