TheAirWaybillisthemostimportantdocumentinaircargotransportation.Itservesas（）.
ACD
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Whichofthefollowingrisksbelongtospecialadditionalrisks_____?
Accordingtodocumentarycredit,the____,onreceiptofletterofcredit,willhavetoprepareshipmentofthecontractgoodswithinthedeliverydate.
Usually,anAirWaybillisnon-negotiable,thatis,thegoodsmustbesenttotheconsigneetitledintheAirWaybill.