欢乐东方 发表于 2025-3-28 16:01:18
Book 1978cent of total international air traffic. The remaining twenty-five percent consists of non scheduled, or charter international air services. International charter air fares and rates are by and large set by the free forces of the marketplace, and compete with scheduled international (lATA) air fare难听的声音 发表于 2025-3-28 19:10:37
http://reply.papertrans.cn/83/8214/821345/821345_42.pngSciatica 发表于 2025-3-29 02:34:08
http://image.papertrans.cn/r/image/821345.jpg招待 发表于 2025-3-29 05:05:51
https://doi.org/10.1007/978-94-017-4465-2ICAO; USA; air traffic; organization