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Dave Clark, Amazon’s senior vice president of worldwide operations, said that the aircraft create additional capacity for Amazon Air and build on the company’s investment in its Prime Free One-Day program — a major tweak of its Prime perk announced in April.

David Liu, chairman of the Macau Shipper's Association and member of Macao SAR's first Legislative Assembly

DeepBlue's Panda Bus fleet is an example of how AI could ensure a safe and smooth public commuting experience. The smart vehicle uses a combination of AI technologies including computer vision, biometrics, autonomous driving and voice recognition to give buses a digital makeover.

De la Mora would not be drawn on whether Mexico could refuse to ratify USMCA if steel tariffs are not withdrawn, saying only: "All options are on the table."

Data from the SAFE showed that in 2018, the Chinese currency was relatively stable against other major peers. By the end of last year, the central parity rate of the renminbi weakened 4.8 percent against the US dollar, while the emerging markets' currency index slipped by 10 percent against the US dollar.