相关题目
（ ） expediting air traffic, aircraft may be permitted to taxi on the runway-in-use, provided no delay or risk to other aircraft will result.
An aircraft landing or in the final stages of an approach to land shall normally have （ ） （ ）over an aircraft intended to depart.
The positioning precision of terminal area radar (within 37km) is （ ） km.
The positioning precision of route surveillance radar (within 74km) is （ ） km.
（ ） is an airspace of defined dimensions, above the land areas or territorial waters of a State, within which the flight of aircraft is prohibited.
UTC and UTC-allowed time difference is （ ） second.
（ ） is an airspace of defined dimensions, above the land areas or territorial waters of a State, within which the flight of aircraft is restricted in accordance with certain specified conditions.
Domestic aeronautical information is to be amended by following （ ） promulgated by CAAC.
After the first observation and issuing of SNOWTAM, if the snowfall continues or runway ices over, observation should be made every （ ）hour(s), and new SNOWTAMs should be issued until all flights are finished.
（ ）is the measurement unit to measure the depth of snow on the runway, taxiway and apron.
