2023年全國碩士研究生考試考研英語一試題真題（含答案詳解+作文范文）_第1頁
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1、ABSTRACTThisdissertationintroducestheconceptofApexofDeltaindrainageareaphysiognomyintoeconomicgeographyandputsforwardthatthereexitsapexineconomicdeltazones∞wellTheeconomicdeltaapexisaregioncomingintobeingaroundthephysica

2、ldeltaapex，whichisdefinedasEconomicApexRegionofDelta(reARm)inthisdissertationEconomicApexRegionofDeltausuallypossessesacentrecitywhichhasimportanteffectonregionaleconomgieApexCityofDelta(ACD)Thispaperconcentratesontheiss

3、uesofthelocationcharacters，theformingmechanism，andthespatialorientationofACDinthedrainagespatialsffucRuebyapproachesofhistoricalevolutionaryanalysisandcaseanalysisthemaincaseisACDofYangtzeDeltaNanjing1Itisillustratedthat

4、ACDisauniversalphenomenathroughco珊ast～ecaseanalysisondeltasofgreatriversbomhomeandoverseasespeciallythedomestic2TheoriginanddevelopmentofNanjingareaffectedbytIlreepredominantfactors：transportation，military(1andform)，ande

5、conomyTheadvantagesofthesethreeaspectsarederivedfromitslocationcharacteristics∞anACDactuallyandthisconclusionimplieswherethedynamicofforminganddevelopingofACDcomesfrom3ACDsshowsomecommoncharacteristicsasfoIlowed：withlong

6、historybeingthecenterofregionalpolitics，economicsandculture；beingthebiggestorimportantriverpertcityinthedrainagebasin；beingthecentralcitywithsignificanceofthewholebasinTheuniquefeatureoflocationandadvantageofACDmainlyres

7、tonitsnansportationhingeposition4ACDisisomorphicinthespaceInadditionACDisaneconomicgeographicalconceptanditisnotnecessarilyliesinthephysicalapexofthedeltaiethephysicalandtheeconomicapexofdeltaarenotsuperposed5Thecentralc

8、itiesofbasinareclassifiedaccordingtheirlocationasuprivercentralcitymiddlerivercentralcityapexcityofdelta(ACD)，andthegatewaycitySuchaspatialorientationhi曲ligll扭thelocationalandfunctionalcharactersofACDandgatewaycity6Regio

9、nalcentralcitygatewaycityistheidealdualnucleistnmtoreDualnucleistructureiscomposedbyACDandthegatewaycityanewspatialcombination。7ThedevelopmentofdomesticdeltaisdrivenbyendogeneficforceThedualnucleistructurecomposedbyACDan

10、dthegatewaycityhasbe∞developingalongwiththeevolutionofphysicalenvkonmentofdeltawhichcouldbedividedintofivephasesDuringthisprocess，thegatewayofthedeltachangedfromtheapexregiontothecoastalregion，andtheACDdeclinedgraduallyw

11、hilecomparedwiththegatewaycityWhileinthedualnucleisUacnlredrivenbyectogenicforcetheACDdidnotexperiencetheprocessofdecliningandfunctionchangingbutWasimpactedbythegatewaycityorigmallyKeywords：EconomicApexRegionofDelta(EARD

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