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7月中旬,北京地区铁路客票系统4．0版本已经实现向5．0版本的升级,全市火车站和火车票代售处已经升级售票版本,新版火车票在北京地区
In mid-July, the 4.0 version of Beijing Railway Ticket System has been upgraded to version 5.0. The city’s train station and train ticket sales offices have been upgraded ticket version, the new version of train tickets in Beijing area