socrate pendant 1 flower7350 eternal n5 necklace 36099 extrait de camelia hoop earrings7464 louis vuitton diamond stud earrings bvlgari bvlgari collection ring 21265 louis vuitton silver vivienne pendant necklace bvlgari b zero1 necklace 571m comete perlee ring4475 divas dream necklace 312613 collier de chien bracelet small model 37897 rose de noel pendant mini model 23309 vintage alhambra ring9276 hermes new diamond paved pig nose bracelet bouton de camelia transformable earrings1215 hermes colorful enamel bracelet bangle coco necklace 53242 19905f98 bvlgari narrow b zero1 ring van cleef arpels flowerlace ring vivi teardrop pearl saturn earrings lprv kelly cadenas bracelet2200 dior diamond paved round cd earrings clic h bracelet 96895 dior huggie hoops earrings louis vuitton mixed metal color blossom louisette earrings louis vuitton love heart stud earrings rose de noel pendant mini model8698 chanel 3 rows pearl rhinestone bracelet earrings choker necklace 72f9c5bc cartier love pendant necklace bvlgari rose gold charm dangle divas dream ring bvlgari b zero1 necklace 571m amulettes kelly pendant 23567 cartier love half hoop earrings d87d9298 cartier juste un clou necklace diamond louis vuitton half black half silver cuban monogram necklace coco crush necklace 23981 chanel vintage gray cc brooch dupe bvlgari four colors motifs bzero1 bracelet van cleef arpels vintage alhambra ring dainty chanel 23a hollow flower wide bracelet cuff bangle chanel open cuff funky exaggerated geometric bangle bracelet 为什么要修筑万里长城?_中外历史 - 棒子小说网
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为什么要修筑万里长城?

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为什么要修筑万里长城?

秦始皇统一中国以后,为了防止北方匈nu的侵犯,就派大将蒙恬带领30万军队,在全国范围内征集几十万青壮劳力,用了十年时间,修筑了西起甘肃临汾、东至辽东的长城。这座长城横贯当时秦朝的北方边境,全长近1万里。到了西汉初期,匈nu趁着中原地区连年战luan,大举进犯。汉武帝即位后,派大将卫青、霍去病打退了匈nu的进攻。随后,修复了秦朝修建的旧长城,并且将长城从西bu的临挑向西北延伸到了玉门关。明朝初年,明太祖朱元璋为了防止北bu蒙古族的进犯,又派大将军徐达监修扩建长城。经过秦、汉、明几代的修建,历时几千年造就了世界著名的万里长城。

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