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.
週一空中技巧決賽期間，見她與前國際奧委會主席托馬斯·巴赫（Thomas Bach）並肩觀賽。
。关于这个话题，safew官方下载提供了深入分析
春节文化消费市场也前所未有地得以拓展。如四川阆中市依托西汉天文学家落下闳参与创制《太初历》确立正月初一为岁首的历史渊源，打造春节文化之乡，推出春节文化寻源之旅。在阆中，春节系列活动从腊八开始，一口气持续到元宵，越来越多的游客选择到这里感受热闹红火的年味。广州行花街、潮州英歌舞等春节习俗和活动破圈传播，吸引着国内外游客前来体验。
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Amateur conservationist and social media influencer Theerasak 'Pop' Saksritawee has a rare bond with Thailand’s critically endangered dugongs. With dugong fatalities increasing, Pop works alongside scientists at Phuket Marine Biological Centre to track the mammals with his drone and restore their disappearing seagrass habitat. Translating complex science for thousands online, Pop raises an urgent alarm about climate change, pollution and habitat loss — before Thailand’s dugongs vanish forever