词汇与结构Aircraft have transponders to assist in ______ them on radar and on other aircraft’s collision avoidance systems.
A. identifying
B. recognizing
C. realizing
D. distinguishing
查看答案
词汇与结构Air traffic control units use the term “______” when they are assigning an aircraft a transponder code.
A. identify
B. ident
C. squawk
D. allocate
词汇与结构1.Depending the type of ______, the transponder sends back a transponder code to help air traffic controllers to identity the aircraft.
A. communication
B. discussion
C. consultation
D. interrogation
词汇与结构Mode S is ______ in controlled airspace in many countries.
A. possible
B. mandatory
C. indispensable
D. necessary
词汇与结构Some countries have required that all aircraft ______ Mode S, even in uncontrolled airspace.
A. be equipped with
B. be equipped on
C. be equipped by
D. be equipped in