单项选择题
如果他希望做盘旋,应当通知ATC。()
A.If he desires to circle, he should advise ATC B.If he wants to hover, he should advise ATC C.If he wants to hover, he should ask ATC D.If he desires to spiral, he should ask ATC
单项选择题 国际民航组织(ICAO)新的飞行标准。()
单项选择题 最大指示空速用海里/时表示.()
单项选择题 穿越跑道入口高。()