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Amazon’s package deliveries are largely “focused on urban areas” according to Morgan Stanley. The retailer still relies on third-party couriers for many of its last-mile deliveries in rural regions. Amazon is now shipping about 2.5 billion packages per year and has more than doubled its share of U.S. package volumes since this time last year, according to the report.

Amid the trade tensions, China's domestic demand is growing significantly faster than in its trading partners, thus its imports tend to outpace exports. The country's current account balance is subject to downward pressure.

Among a wider class of pantothenamides that have broad spectrum activity against many bacteria, only one particular molecule is much more effective against E. coli, the study found.

American Airlines owns 24 MAX jets and is awaiting delivery of 16 more this year.

Amazon’s decision to?open the digital brain up?to developers and device manufacturers in 2015 has contributed to its early lead in the competitive smart speaker race.?In August, Amazon introduced a?new set of tools?to help commercial device makers build the technology into their products.?Amazon also last April?opened up?what amounts to Alexa’s ears, her 7-Mic Voice Processing Technology, to third party hardware makers who want to build?the digital brain into their devices. Amazon opened up Amazon Lex, the artificial intelligence technology that powers Alexa to developers.