【答案解析】Bank of China Beijing Branch October 13,2003 Bank A New York U.S.A Dear Sirs, Your BP No. "' dated'" Our Ref. '" under L/C No... Regarding your letter of May 7, 2003 concerning the delay in reimbursing payment for the captioned bills, we wish to inform you that the time lag between the receipt of documents and reimbursement was caused by the following reasons: 1) We received the documents on April 19 and 20,2003 which were, public holidays in China. 2) Since the transferor ABC Company is not our client, it took more time for us to transfer the documents and message to them through their banker. 3) The L/C required substitution of documents by the transferor which also took longer time. We hope that you will be satisfied with our above explanation. 　　　　　　　　　　 Yours sincerely, 　　　　　 　　　　　　　　　 ××× 　　　　　　　　　　　 Manager 　　　　　　　　　　　 Bank of China 　　　　　　　　　　　Beijing Branch