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The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.，这一点在91视频中也有详细论述
，更多细节参见搜狗输入法2026
Alternative verification，更多细节参见im钱包官方下载
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2026-02-27 00:00:00:0外交部党委 ——深入学习《习近平外交思想学习纲要（2025年版）》