如果用户的偏好设置没有指示其他曲目更合适，如何识别应启用该曲目在HTML中？
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WBOY
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2023-09-15 13:37:02
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如果您为视频提供两个字幕轨道，请使用默认属性来标识要启用的轨道。
<!DOCTYPE HTML>
<html>
<body>
<video width = "300" height = "200" controls autoplay>
<source src = "/html5/foo.ogg" type = "video/ogg" />
<source src = "/html5/foo.mp4" type = "video/mp4" />
<track src = "subtitles_en.vtt" kind = "subtitles" srclang = "en" label = "English">
<track src = "subtitles_ru.vtt" kind = "subtitles" srclang = "ru" label = "Russia" default>
Your browser does not support the video element.
</video>
</body>
</html>
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