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北京地铁5号线在2007年10月7日下午2点正式开通,这一天,北京地铁车站共发行了6种纪念车票(图1-4)和1枚普通车票(图5),其面值均为2元。
Beijing Metro Line 5 was officially opened at 2:00 pm on October 7, 2007. On this day, Beijing metro stations issued a total of 6 kinds of commemorative tickets (Figure 1-4) and 1 ordinary ticket (Figure 5), all of which denominated For 2 yuan.