这是一篇介绍长城的文章

　　ConstructionoftheGreatWallhasalonghistoryofthemajesticimmensityoftheworldraremiracle.GreatWallwaslessthannon-hero.GreatWallnorth-southstaggeredthings,stretchinginourgreatmotherlandvastland.Itseemslikeadragon,crossingtheToweringmountainsandthroughthevastgrassland,crossedthevastnessofthedesert,plungingtowardtheocean.Accordingtohistoricalliterature,thereareover20countries,thefeudalmonarchyandthenobility,totheGreatWall,iftheconstructionoftheGreatWallvarioustimescombined,about10Milesabove.OftheQin,HanandMingdynastiesthreeoftherequiredlengthoftheGreatWallaremorethan1Miles.Currently,China'sXinjiang,Gansu,Ningxia,Shanxi,InnerMongolia,Shanxi,Hebei,Beijing,Tianjin,Liaoning,Jilin,Heilongjiang,Henan,Shandong,Hubei,Hunanandotherprovinces,municipalitiesandautonomousregionshavetheGreatWall,arelicofTaiwan-fire.OfwhichonlytheInnerMongoliaAutonomousRegionontheGreatWall,tomorethan30,000.

　　Minginthe"outside"oftheGreatWall,theconstructionofthe"edge"GreatWallandthe"three"TheGreatWall."Guan"totheGreatWallbuiltbytheNorthernQiDynastybasis,startingfromInnerMongoliaandShanxiPianguanatthejunctionofthewest,theEastviaYanmenguan,Ping-allrelatedtoHebei,andthendiscounttothenortheast.thesource,Fangshan,ChangpingZhuxian,DirectJuyongguan,andthenfromthenorthandeast,Huairoutothefourcustoms,andthe"outside"GreatWallconnectingtoZijinguanasthecenter,agenerallynorth-south."Three-"TheGreatWallinmanyplacesand"edge"GreatWallparallel,insomeplaces,separatedonlytwoscoresinthecity.Inaddition,theconstructionofalargenumberof"heavyCity."Yanmenguanarea"heavycity"hasasmanyas24!

　　GreatWallwasChina'sancientmiraclecreatedbytheworkingpeople.SinceQinShihuang,theconstructionoftheGreatWallhasbeenamajorproject.Accordingtorecords,theemperorusedtobuildtheGreatWallnearly1millionlaborforce,thecountry'spopulationof1/20!Therewasnomachinery,inadditiontotransportsoil,theblockscanbetransportedbydonkey,goatscanmountaineeringlivestock,allhavetorelyonhumanlabor,andtheworkingenvironmentismountains,cliffsShenhe.Onecanimaginethatalotofpeopledidnottakepainstakinglabor,itisimpossibletocompletethisenormousproject.

　　TheworksoftheGreatWall,accordingtoaroughestimate,onlytheconstructionoftheMingDynastyasanexample,ifthebrick,earthworksbuiltwitha1mthick,high-fivemetersofthewall,aroundtheEarthmorethanaweek.Ifbuilttoawidthof5metres,35cmthickintheroad,itwillbeabletoorbittheearthinthe34weeks.Ifalldynastiesoftherequiredtotalto10Miles,thenthislongwall,andorbittheearth10weeksofthisroad,andorbittheearth34weeks.

　　"Becauseofthetopography,withtheriskofCypriot"istheconstructionoftheGreatWall,whichisanimportantexperience,theemperorofthetimeitiscertainlydown,SimaQianitintothe"HistoricalRecords"are.EverysubsequentconstructionoftheGreatWallareadynastyinaccordancewiththeprinciplesofthis.AllarebuiltGuanCityPassmeritsinthechoicebetweentwomountainvalleys,orattheturnoftheriver.Pingchuanorthenecessarycontacts,such险要cancontrol,butalsosavemanpowerandmaterials,inordertomeetthe"onehusbandwhencustomsm