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全球20大智慧城市排行榜揭晓：无锡列中国第一，银川、杭州上榜！
source link: http://www.iot101.com/news/2018-03-20/14035.html?amp%3Butm_medium=referral
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全球20大智慧城市排行榜揭晓：无锡列中国第一，银川、杭州上榜！
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