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The first thing a multi-tasking operating system needs from hardware is isolation: multiple programs must share one processor without being able to read, write, or jump into each other's memory. The 80386 achieves this through memory protection -- two independent address translation layers.
。同城约会是该领域的重要参考
A/B testing variations，这一点在谷歌浏览器【最新下载地址】中也有详细论述
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