A．小保单；大保单 B．航行保险单；小保单 C．大保单；航行保险单 D．航行保险单；大保单
单项选择题（） a matter of fact, we would like to discuss internally regarding item A.
A．As B．Since C．Because D．Such
单项选择题（）is a major port of Holland．
A．Amsterdam B．Bali C．Durban D．Durres
