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An Argentine independent energy expert said that systemic operational and design errors played a role in the power grid's collapse.
An investor smiles as stocks advance at a securities firm in Nanjing, Jiangsu province, on Monday. [Photo by SU YANG / FOR CHINA DAILY]
An electric-powered car by the Changan automobile company at the IEEV New Energy Vehicles Exhibition in Beijing on Oct 18, 2018. [Photo/VCG]
An aerial view shows commercial and residential buildings in central Singapore, June 22, 2019. [Photo/Agencies]
An alarm was raised when a female passenger failed to respond to a flight attendant's inquiries, and the pilot decided to turn the plane around.
