50. 若買賣契約上有關付款條件的規定為〝Payment to be effected by T/Twhen the goods have been sold.〞，則可推知此交易之付款條件為何？
(A)CWO
(B)D/P
(C)COD
(D)Consignment 。

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統計： 尚無統計資料