Huang Wei(L), chairman of the supervisory board of Chongqing Airport Group Co., Ltd, receives a gift from Lourdes Saab, deputy chief of Protocol of Los Angeles County, during a tourism seminar hosted by China's Hainan Airlines and Chongqing Airport Group to promote tourism in the southwestern Chinese metropolis of Chongqing in Los Angeles, the United State, on Sept. 11, 2018. (Xinhua/Li Ying)