设α1,α2,α3,α4都是3维向量,则必有()
B
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E-commercenotonlyinvolvesexchangesamongcustomers,businesspartnersandvendors,butalsoincludesoperationsthathandledwithinthebusinessitself.
WhichofthefollowingdescriptionsaretrueaboutNVOCC_____?
Accordingtodocumentarycredit,the____,onreceiptofletterofcredit,willhavetoprepareshipmentofthecontractgoodswithinthedeliverydate.