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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.

Amazon’s surprise announcement Thursday morning that it will begin searching for a second headquarters in North America will send political and civic leaders across the continent into a frenzied scramble to lure the fast-growing technology powerhouse.

Among the interviewees, 47 percent are employed, while 53 percent are retired or running their own business. The median of total liquid assets of multimillionaires is 20 million HK dollars.

Amazon’s advertising business is showing no signs of letting up.

Among them, ability appraisers for the elderly have filled a gap in the market for elderly care.