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A customer is shown new Apple devices by a staff member at an Apple store as Apple's new line of products goes on sale in London, Britain, on Sept. 20, 2019. (Photo by Ray Tang/Xinhua)

A customer is shown new Apple devices by a staff member at an Apple store as Apple's new line of products goes on sale in London, Britain, on Sept. 20, 2019. (Photo by Ray Tang/Xinhua)