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Nanjing is an important railway hub in eastern China. It serves as rail junction for the Beijing-Shanghai (Jinghu) (which is itself composed of the old Jinpu and Huning Railways), NanjingTongling Railway (Ningtong), NanjingQidong (Ningqi), and the Nanjing-Xian (Ningxi) which encompasses the HefeiNanjing Railway. Nanjing is connected to the national high-speed railway network by BeijingShanghai High-Speed Railway and ShanghaiWuhanChengdu Passenger Dedicated Line, with several more high-speed rail lines under construction.

What high-speed railway is Nanjing connected to that contains Shanghai?
ShanghaiWuhanChengdu Passenger Dedicated Line