必读:020是哪里的区号

020是哪里的区号,下面是详细内容。。。先来个测验:北京、上海、广州,区号各自是多少?1秒答完:010、021、020。那再问个问题,为什么广州的区号排在上海前面?虽然没有成文规定,但大家都会觉得,排编号这件


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