An order is represented as a predicate Order(S,Q,D,P) where S is the supplier,Q is the quantity orde

题目

An order is represented as a predicate Order(S,Q,D,P) where S is the supplier,Q is the quantity ordered,D is the due date,and P is the unit price.的意思

答案

采购订单由S,Q,D ,P按预先确定顺序来表达：S代表供货商,Q代表定购数量,D代表截至日期,P代表单价.