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，详情可参考爱思助手下载最新版本
刚到浙江工作，有人请习近平同志谈谈“施政纲领”，他笑着说：“我刚刚来，还没有发言权。到时候，我是要说的。”，推荐阅读WPS官方版本下载获取更多信息
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.