题目内容：
在Visual FoxPro中,定义数据的有效性规则时，在规则框输入的表达式的类型是（ ）。
A．数值型 B．字符型
C．逻辑型
D．日期型
参考答案：
答案解析：
单选题：在Visual FoxPro中,定义数据的有效性规则时，在规则框输入的表达式的类型是（ ）。
- 题目分类：VF
- 题目类型：单选题
- 查看权限：VIP
B．字符型
C．逻辑型
D．日期型
B．字符型
C．逻辑型
D．日期型
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