The ______ is an unconditional order to a bank or a customer to pay a sum of money to someone on demand or at a fixed time in the future.
A、D/P
B、credit
C、draft
D、L/C
【正确答案】：C
【题目解析】：The draft is an unconditional order to a bank or a customer to pay a sum of money to someone on demand or at a fixed time in the future.参见教材P140。