Several Chinese travel agencies noted that a lack of direct flights from first-tier cities to the country might be a major factor.
Shanghai has China's tallest building, the 632-meter-high Shanghai Tower.
Several thousand suspect accounts have been frozen, he added.
Shanghai Pudong International Airport on Oct 29 became the first airport in the Chinese mainland to offer paperless travel procedure for outbound passengers.
Shanghai has unveiled an accelerator project to boost the use of artificial intelligence in the medical field as it upped the ante in driving AI applications across several industries.
Shanghai's legislative body on Monday appointed Gong Zheng as vice-mayor and acting mayor of the municipality. The appointment was made at the 19th session of the Standing Committee of the 15th Shanghai Municipal People's Congress, the local legislature, and was posted on its website.
福州网站优化排名
Shane Tedjarati, president of Honeywell Global High Growth Regions, who is part of Trump's business delegation to China, said the agreements with Chinese partners will advance cooperation in China's oil and gas and aviation industries.
Shares of Regeneron Pharmaceuticals Inc jumped 7.1% after Trump's physician said he had been treated with Regeneron's experimental antibody treatment for the disease, which has killed more than a million people worldwide and wreaked economic havoc.
Shanghai's flood control department also issued an emergency notice to lower the water level in rivers and check drainage networks, pumping stations and related facilities.
Sharon Hanna