【简答题】Building Robot Soldiers Researchers are rushing to create battlefield robots that can assist humans in combat. June 24 — Last November, an unmanned Predator aircraft flying high over Yemen killed six ...
【单选题】词汇与结构 When flying the traffic pattern with the wing flaps _________, the airplane must be flown in a relatively nose-high attitude to main altitude, as compared to flight with flaps extended.
【单选题】词汇与结构 When flying the traffic pattern with the wing flaps retracted, the airplane must be flown in a relatively nose-high attitude to main altitude, as compared to flight with flaps _________.