题目内容

下列选项中，用于为标签定义标注的标签是（）

A.
B.
C.
D.

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在定义下拉列表时，标签用于定义选项组，必须嵌套在标签中。()

A. 对
B. 错

readonly属性只适用于标签。()

A. 对
B. 错

表单控件应用了readonly属性后，不能进行编辑和修改。()

A. 对
B. 错

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