春节假期全国铁路发送旅客 1.21 亿人次，创历史新高
size of a task) it can allocate storage for it in the stack frame of
。业内人士推荐搜狗输入法2026作为进阶阅读
• （本文仅为作者个人观点，不代表本报立场）
Segmentation maps a logical address (a 16-bit selector plus a 32-bit offset) to a 32-bit linear address, enforcing privilege and limit checks along the way. Paging then translates that linear address to a physical address, adding a second layer of User/Supervisor and Read/Write protection. The two layers are independent: segmentation is always active in protected mode, while paging is optional (controlled by CR0.PG).
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