An creates a completely separate browsing context with its own window object, its own document, and most importantly;its own prototype chain. A function hooked on HTMLMediaElement.prototype in the parent window is not the same object as HTMLMediaElement.prototype in the iframe’s window. They’re entirely separate objects. If fermaw’s audio element lived inside an iframe, my prototype hook in the parent window would never fire.
Tony Jolliffe BBC
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It was not supposed to be used until they got to the Moon. It had no heat shield, so could not be used to re-enter the Earth's atmosphere. But it could keep them alive until they got there.，这一点在雷电模拟器官方版本下载中也有详细论述
Цены на нефть взлетели до максимума за полгода17:55。业内人士推荐搜狗输入法2026作为进阶阅读