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An investor tracks stock prices at a securities company in Hangzhou, East China's Zhejiang province, on Jan 2, 2020. [Photo/Sipa]
An investor walks past an electronic board showing stock information at a brokerage house, Dec 25, 2018. [Photo/IC]
An image from Amazon’s “Distributed speaker synchronization” patent, granted in 2016. (USPTO)
An aerial view of the Whakaari, also known as White Island volcano, in New Zealand, Dec 12, 2019. [Photo/Agencies]
An investor looks at share prices at a brokerage in Fuyang, Anhui province. [Photo by Wang Biao / For China Daily]
