Frequency-Range
发表于 2025-3-30 11:53:36
,Origins of the Global Distribution Systems (1925–1983),n extension of an airline’s sales force. Several airline owned GDSs came into existence that gave them a competitive edge. Subsequently, airline deregulation occurred in 1978, followed by the introduction of airline frequent flyer programs in 1981 The regulatory period began in 1983 when smaller air
CAB
发表于 2025-3-30 13:03:46
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