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.
But its age verification plan, which would have required either a facial, photo or government ID scan to confirm the claimed age of users, drew near-instant ire from Discord's community.，更多细节参见WPS下载最新地址
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