题目内容：
如果输入掩码设置为”L”，则在输入数据的时候，该位置上可以接受的合法输入是（）。
A.必须输入字母或数字
B.可以输入字母、数字或空格
C.必须输入字母A～Z，a～z
D.任意符号
参考答案：
选择题：如果输入掩码设置为”L”，则在输入数据的时候，该位置上可以接受的合法输入是（）。
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
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