【单选题】无人机定速遥控飞行时放下起落架,驾驶员需
【单选题】无人机定速遥控飞行时放下起落架,驾驶员需
【单选题】In the sentence "He saw his face reflected in the water ”, the italicized phrase is .
【单选题】In the sentence "He placed his hand on her shoulder", "place" means___.
【单选题】As in the sentence "He was flat broke , and far in debt," may possibly mean ____