单项选择题
A.承保人;投保人;受保人 B.投保人;承保人;受保人 C.受保人;投保人;承保人 D.承保人;受保人;投保人
A.purchase order;commercial invoice B.commercial invoice;purchase order C.commercial invoice;proforma invoice D.proforma invoice;purchase order
A.peso B.quetzal C.pound D.Markka