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Among the surveyed, nearly 85 percent are from first- and second-tier cities and 14.5 percent are from third- and fourth-tier cities.

Amazon’s long-rumored Android-based device, which would allow customers to stream Internet programs onto a TV,?would compete with products like Apple TV, the Roku and Google’s Chromecast. Amazon?had originally targeted a launch of the set-top box around the holiday season, but?those plans were delayed.

Among the participants, 48 percent are female and 61 percent non-Hispanic white aged from 18 years old to 90 years old, with a median age of 35 years.

Amazon’s expanding delivery infrastructure goes beyond the aircraft and includes on-the-ground operations such as new regional air hubs at Lakeland Linder International Airport in Florida later this summer, San Bernardino International Airport next year, and a central hub at Cincinnati/Northern Kentucky International Airport in 2021.

Among the new measures, environmental protection has been a major area, with two laws and a reform plan that took effect on Monday. They include an environmental protection tax, a water pollution prevention and control law and the compensation reform plan on ecological and environmental damage.