【答案解析】Bank of China 　　　　　　　　　　　　　　　　　　　　　　Beijing Branch 　　　 October 23,2001 Bank A New York U.S.A Dear Sirs, Your signature No. 2341 L/C NO. 35797 Upon comparing the captioned signature appearing on the above credit with your Booklet in our possessions, we are unable to verify them because we are only in possession of tile specimens numbered 1430 as the maximum in your Booklet of Specimen Signatures, so authentication of the signature number 2341 is beyond possibility. Please look into the matter and let us know whether you have sent the above specimen signature, so as to update the Booklet in our possession. We anticipate your early attention to the matter. Yours faithfully, ××× Manager Bank of China Beijing Branch