作者：berta hrd 9 年以前
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Due to the globalisation, these cities have a global influence as regards certain activities, for example information technology.
these are large-scale urban agglomerations formed by the metropolitan areas of several cities being joined by their transport
These are cities with more than 10 million inhabitants.They are economic, political and administrative centres that influence the rest of the world.
These are large urban centres that integrate other smaller cities within their metropolitan areas.
