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An Amazon delivery drone flies around the MARS conference in Palm Springs, Calif. (Jason Johnson via Periscope)
An employee makes his way from the Meeting Center to Doppler.
An official at the bureau said Qingdao is seeking strategic scientists who have the capability to attain major scientific breakthroughs and lead the trend in science, or scientists engaged in research of frontier issues or cross-discipline studies.
An Australian exhibitor introduces a lobster during an import expo in Shanghai. [Photo/Xinhua]
An employee gets back to work at the Huigu Industrial Park in East China' Jiangxi province on March 2, 2020. [Photo/Xinhua]
