56. Is China the only country that uses 11-digit mobile phone numbers in the world?

　　________________________________________________________________

　　57. What can we know from the fourth to the seventh digits of a mobile phone number in China?

　　________________________________________________________________

　　58. Why does China use 11 digits for mobile phone numbers?

　　________________________________________________________________

　　59. When can a mobile phone number be recycled in China?

　　________________________________________________________________

　　60. Which country perhaps has the shortest mobile phone numbers in the world?

　　________________________________________________________________

　　 歡迎使用手機、平板等移動設備訪問中考網，2023中考一路陪伴同行！>>點擊查看