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山海关区-山海关位于华北与东北的交界处，北倚群峦叠翠的燕山，南襟烟波浩淼的渤海。远古时期这里属幽州碣石，是中原与东北少数民族政治、经济交往的交通要道。到了中古时期，又成为兵家争夺的战略要地。两汉时期，设置临榆县-shanhaiguanqu</br> generated by yvsou girl
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