- 问题详情:Flyingdevicescalleddrones(无人机)maybeoneofthemostimportanttechnologiesofthefuture.Thenumberofjobsforpeoplewhoknowhowtodesign,buildandcontrolthemisincreasing.Becauseofthisincrease,severalU.S.universitieshavestartedofferingdegreesinunmannedair...
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