The VOR airways are identified by “_______” while the Jet routes are identified by “_______”.
A.V……J
B.V……A
C.J……B
D.R……V
正确答案是A
The VOR airways are identified by “_______” while the Jet routes are identified by “_______”.
A.V……J
B.V……A
C.J……B
D.R……V
正确答案是A