题目内容：
“商品”与“顾客”两个实体集之间的联系一般是（ ）。
A．一对一 B．一对多
C．多对一
D．多对多
参考答案：
答案解析：
单选题：“商品”与“顾客”两个实体集之间的联系一般是（ ）。
- 题目分类：C语言
- 题目类型：单选题
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B．一对多
C．多对一
D．多对多
B．一对多
C．多对一
D．多对多
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Paragraph4______________.
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