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A staff member tests the speed with a Huawei 5G mobile phone at Huawei 5G Innovation and Experience Center in London, Britain, on Jan. 28, 2020. (Xinhua/Han Yan)
A staff member tests the speed with a Huawei 5G mobile phone at Huawei 5G Innovation and Experience Center in London, Britain, on Jan. 28, 2020. (Xinhua/Han Yan)