【单选题】【消耗次数:1】
在?HTML5?中,哪个属性用于规定输入字段是必填的??(?????)
validate
formvalidate
required
placeholder
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相关题目
【单选题】 在HTML5中,哪个属性用于规定输入字段是必填的??(?????)
①  validate
②  formvalidate
③  required
④  placeholder
【判断题】 在 HTML5 中,required属性用于规定输入字段是必填的( )
①  正确
②  错误
【单选题】 在?HTML5?中,哪个属性用于规定输入字段是必填的( )
①  required
②  Formvalidate
③  Validate
④  placeholder
【单选题】 在HTML5中,规定输入字段是必填的属性是( )。
①  required
②  formvalidate
③  validate
④  placeholder
【单选题】 在HTML5中,为输入字段提供占位符(提示信息)的属性是( )。
①  required
②  formvalidate
③  validate
④  placeholder
【单选题】 在HTML5中,哪个属性能够向用户显示描述性说明或者提示信息
①  required
②  formvalidate
③  validate
④  placeholder
【单选题】 在 HTML5 中,哪个元素用于组合标题元素( )
①  group
②  header
③  headings
④  hgroup
【单选题】 在 HTML5 中,哪个元素用于组合标题元素( )
①  group
②  header
③  headings
④  hgroup
【单选题】 哪个 HTML5 内建对象用于在画布上绘制( )
①  getContent
②  getContext
③  getGraphics
④  getCanvas
【判断题】 在 HTML5 中不再支持 script 元素的type属性( )
①  正确
②  错误
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