【答案解析】Bank of China Beijing Branch November 23, 2002 Bank A Manhattan U.S.A Dear Sirs, Your Unused Checks No. 87762 & No. 87763 for Closing Your A/C Reference is made to your captioned checks. According to our regulations, our customers should return all the unused blank checks to us for cancellation before closing their checking accounts in our books. We shall appreciate it if you will send back to us the above mentioned unused checks so that we can remit the credit balance on your account to your account with ABC Bank, New York. We thank you for your cooperation. Yours faithfully, ××× Manager Bank of China Beijing Branch