题目内容

设置当视频播放出错时，弹出一个提示框提醒用户，则需要通过以下哪种事件

A. onplay
B. onload
C. onpause
D. Onerror

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给水管道的布置形式按水平干管的设置位置和方式分为哪几种？

A. 下行上给方式
B. 上行上给方式
C. 上行下给方式
D. 环状式

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在表格中,用于设置表格背景颜色的属性是( )

A. border
B. celspacing
C. cellpadding
D. background

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下列选项中,属于单行文本程属性的是( )

A. maxdength
B. name
C. vaue
D. size

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下列选项中,用来定义下拉列表的是( )

A.
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设置当视频播放出错时，弹出一个提示框提醒用户，则需要通过以下哪种事件

A. onplay B. onload C. onpause D. Onerror

给水管道的布置形式按水平干管的设置位置和方式分为哪几种？

在表格中,用于设置表格背景颜色的属性是( )

下列选项中,属于单行文本程属性的是( )

下列选项中,用来定义下拉列表的是( )

A. onplay
B. onload
C. onpause
D. Onerror