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Amazon’s drone efforts date back to 2013 when Amazon CEO Jeff Bezos revealed plans for delivery drones on 60 Minutes. But seven years later the company has yet to officially launch a widespread commercial delivery drone service, only doing small tests in the meantime.

Among the 41 sub-sectors, 26 saw higher profits and 15 reported lower earnings.

Ambassador Jidda said that the forum had given African leaders a sense of togetherness to discuss common problems and rally financial support. "We are really appreciative of the efforts of China," the envoy added. During the last summit in Johannesburg in South Africa in 2015, China pledged support of billion for African countries in their development projects and Nigeria got a significant share of that.

Among all the products, the panel display sector has been making significant progress, shifting from overreliance on imported products in the past to accounting for 27 percent of the total shipment area in the world in 2016.

Among his many scientific achievements, Wang gained three patents and 12 new drug certifications, established a research and development platform for concentrated inactivated combination vaccines, and overcame problems in anti-epidemic work against a number of major poultry diseases, including infectious bursal disease and Newcastle disease.