【单选题】AT89S51 单片机外部中断0对应的中断入口地址是( )。
【单选题】( )buys the sight draft and/or documents presented by the exporter, and then forwards the draft and documents to the opening bank for reimbursement.
C.
Advising/notifying bank
【简答题】Opening Bank;Issuing Bank
【简答题】( )is the party which applies to the bank for the opening of a letter of credit.