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G50 Global Smart City Summit Was Successfully held

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By 硅谷丁丁
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G50 Global Smart City Summit主办,Santa Clara 及Cupertino赞助,丁丁电视协办的
G50全球智慧城市市长峰会,于今日（2018年4月6日）雨中,在Santa Clara convention center成功举行

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