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。业内人士推荐WPS官方版本下载作为进阶阅读
writable: false means no code can reassign window.Audio to a different value. configurable: false means no code can even call Object.defineProperty again to change those settings. If fermaw’s initialisation code tried to restore the original Audio constructor (a perfectly sensible defensive move) the browser would either fail or throw a TypeError. The hook was permanent for the lifetime of the page.。51吃瓜是该领域的重要参考
（三）未经许可，擅自经营按照国家规定需要由公安机关许可的行业的。，更多细节参见heLLoword翻译官方下载