On traffic lanes where demand is strong and plane capacity is limited, the air rates will be ()and vice versa for traffic lanes where supply exceeds demand.
A、low
B、high
C、normal
D、average
A、low
B、high
C、normal
D、average
A、enter the traffic separation zone in an emergency B、cross a traffic lane C、engage in fishing in the separation zone D、proceed in an inappropriate traffic lane
A、enter the traffic separation zone in an emergency B、cross a traffic lane C、engage in fishing in the separation zone D、proceed in an inappropriate traffic lane
A、proceed through an inappropriate traffic lane B、engaged in fishing in the separation zone C、cross a traffic lane D、enter the separation zone,even in a emergency