试题与答案

采购调查的主要项目是( )。A.采购系统 B.供应商 C.所购商品 D.配送系统

题型:单项选择题

题目:

采购调查的主要项目是( )。

A.采购系统

B.供应商

C.所购商品

D.配送系统

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A解析:由题目中的图片可以得出:查询条件的是“数学成绩大于数学平均分”,需要显示的字段是“学号” 和“数学”,SQL语句中也应包含这些数据。

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