题目内容

() credits are often used by export brokers.

A. transferable
B. clean
C. back to back
D. reciprocal

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A check is drawn by a bank.

A. 对
B. 错

When using a check, the bank can make a payment on demand or at a fixed or determinable future time.

A. 对
B. 错

A promissory note must be paid on demand.

A. 对
B. 错

A bill of exchange is a conditional order in writing.

A. 对
B. 错

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