// 1. 建堆：从最后一个非叶子节点开始向上调整
Descending into the windowless basement of a second world war air-raid bunker built for civilians in central Berlin is arguably an eerie enough evocation of what it means to endure life in a conflict.
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But there’s also that annoying, gnawing truth: You don’t know what you don’t know. This has, for decades, been an apt adage for describing life in this experimental orbital colony. Eventually, though, different aphorisms will come into play. Yes, it’s true: You don’t know what you don’t know. But we do know that all good things come to an end. And that what goes up must come down.
Последние новости。关于这个话题，safew官方下载提供了深入分析
Медведев вышел в финал турнира в Дубае17:59
“一些边缘户本来就晃晃悠悠，稍遇到点风险变故马上就可能致贫”，习近平总书记语重心长。，更多细节参见同城约会