A boy stands in front of a microscope at Shandong Science and Technology Museum in Jinan, capital of east China's Shandong Province, Oct. 4, 2016. Many parents took their children to take part in science and technology activities during the National Day holiday. (Xinhua/Zhu Zheng)
Passengers wait to take bus outside the Lanzhou Railway Station in Lanzhou, capital of northwest China's Gansu Province, Oct. 7, 2016. The country witnessed a travel peak on the last day of the week-long National Day holiday as people started to return to school and work. (Xinhua/Fan Peishen)
TIANJIN, Oct. 7, 2016 (Xinhua) -- Passengers check in to take trains at the Tianjin Railway Station in Tianjin, north China, Oct. 7, 2016.
October 6 at 3 pm, Jiaozhou Bay Bridge west to eastwas the scene, the scene of serious congestion due to an accident., The entire Jiaozhou Bay Bridge has become a "parking lot."