题目内容
Any aircraft, vehicle, or person walking or working in airport areas is required to have_____from Ground Control.
查看答案
搜索结果不匹配？点我反馈
更多问题
GMR is used by Ground Control as an _____tool to control ground traffic, particularly at night or in poor visibility.
The most important concept of IFR flying is that separation is maintained ____of weather conditions.
ATC monitors IFR flights on radar, or through aircraft position reports in areas where radar____is not available.
In the United States, a flight operating under IFR is required to provide position reports if ATC advises a pilot that the plane is not ____on radar.
微信支付 
支付宝支付