問題詳情
17. Which of the following about drones is TRUE?
(A) The flight of drones cannot operate by an onboard computer or an autopilot
(B) A drone is an aircraft that operates by a human on board
(C) A drone is also known as an unmanned aerial vehicle (UAV)
(D) Drones are for hobbyists and cannot be used to monitor crop growth
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增