某商店业务处理系统中，基本加工“检查订货单”的描述为：若订货单金额大于5000元，且欠款时间超过60天，则不予批准；若订货单金额大于5000元，且欠款时间不超过60天，则发出批准书和发货单；若订货单金额小于或等于5000元，则发出批准书和发货单，若欠款时间超过60天，则还要发催款通知书。现采用决策表表示该基本加工，则条件取值的组合数最少是（ ）。
- A.2
- B.3
- C.4
- D.5
正确答案及解析
正确答案
解析
根据题意可得出如下决策表：
其中第2条和第4条可进行合并，故该条件取值的组合数为3。
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