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An attempt to use a spray of mist to trick an air pollution monitoring station failed when the water froze in the winter air－providing proof that someone was trying to tamper with the results.
An Amazon employee enters a fulfillment center in Kent, Wash., before a shift in the massive package handling warehouse. (GeekWire File Photo / Kurt Schlosser)
An Azerbaijani parliamentary delegation led by Speaker Ogtay Asadov visited Forbidden City in Beijing, 20 June. Photo by Shahin Jafarov / Provided to chinadaily.com.cn
An envoy from the ROK walks with top DPRK leader Kim Jong-un during their meeting in Pyongyang on Wednesday. [Photo/Agencies]
An airplane takes off at the Daxing International Airport in Beijing, on Sept 25, 2019. [Photo/Xinhua]
来源：资阳报