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Amtrak's co-chief executive, Richard Anderson, acknowledged that a working Positive Train Control (PTC) system, which slows trains if they are going too fast, had not been installed on that stretch.
An aerial photo taken on Jan 26, 2020 shows the Yellow Crane Pavilion and the Yangtze River Bridge during a lockdown to contain the epidemic in Wuhan, central China's Hubei province. [Photo/Xinhua]
An employee selects paint from a stack at AkzoNobel NV's paint factory in Ashington, the United Kingdom. Provided toCHINA DAILY
An aerial view of the Kai Tak Cruise Terminal. [PHOTO PROVIDED TO CHINA DAILY]
An exhibitor arranges roses at her stand at an expo in Nairobi, Kenya, June 5, 2014. [Photo/VCG]
来源：资阳报