The Air Waybill is the most important document in air cargo transportation. Itserves as （）.
ACD
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_____publishedbytheICCcontainsdetailedprovisionsdealingwiththeoperationofdocumentarycredit.
Thescopeoffreightforwarder’sserviceonbehalfofexporterincludes_____.
Underthevechartering，theshipownerisresponsibleforthefixedrunningexpensesaswellasfortheveexpenses.
Inmostsupplychains,customerrequirementsaretransmittedintheformof（）