听力原文:M: Well, what other documents shall I hand in to your bank besides bills of ladin
W: A sight draft, an insurance policy, and a collection order which contains instructions on collection operation to our bank.
Q: What are they talking about???
(18)
A.Presentation of bill of exchange for payment.
B.Documents required for a collection operation.
C.Application for a letter of credit.
D.What are contained in a collection order.