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.
据厚海数据平台统计，截至2025年末，中国内地中端及以上在营酒店总数已达8.4万家，客房供给规模超过907万间，同比增速约为7.7%，大幅低于过往十年平均复合增速12.7%，增速水平创下近十年历史新低。
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Answer (Playground):
5. Best graphics card: AMD Radeon RX 9070
Note: these are distinctly different from Service Account JSON keys used to power GCP.