Acceptance Bank?

Acceptance Bank?
以下是某一L/C关键的几个terms：
·MT700 Sender:Wachovia Bank NA,Hong Kong Branch
·51D Applicant Bank:Banco De Credito Centroamericano,Managua,Nicaragua
·41D Available With...By:Wachovia Bank NA,Shanghai Branch by Acceptance
·42C Draft at:90 days after B/L
·42D Drawee:Wachovia Bank NA
·46A：full set clean on board B/L consigned to the order of Banco De Credito Centroamericano,Managua,Nicaragua
·78:documents must be presented to Wachovia Bank NA,Shanghai Branch who holds special instruction
问题主要在于42D Drawee未明确分行,那最终会由Wachovia Shanghai还是Wachovia Hongkong承兑?

虽然信用证指定由美联银行上海分行承兑,但是上海可承兑也可以不承兑,这是上海分行的权利.如果上海不承兑的话,那么香港分行就必须承兑.所以现在还不能确定到底谁会承兑,42D也没有明确谁承兑.这是我的看法,大家讨论.