2019年中考英语阅读理解专项训练及答案:手机号码(2)
56. Is China the only country that uses 11-digit mobile phone numbers in the world?
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57. What can we know from the fourth to the seventh digits of a mobile phone number in China?
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58. Why does China use 11 digits for mobile phone numbers?
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59. When can a mobile phone number be recycled in China?
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60. Which country perhaps has the shortest mobile phone numbers in the world?
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