![Citiesdonotappearontheearthrandomly,nordotheygrowinaran...]( "Citiesdonotappearontheearthrandomly,nordotheygrowinaran...")
- 問題詳情：Citiesdonotappearontheearthrandomly,nordotheygrowinarandomfashion.Theydevelopastheresultofacomplexinterplayofenvironmentalandsocialfactors.Severalfactorsinthenaturalenvironmentdeterminethelocationofcities.Largecities,forexample,aregenerallyno...
- 30810
中文谷