The 80286 introduced "Protected Mode" in 1982. It was not popular. The mode was difficult to use, lacked paging, and offered no way to return to real mode without a hardware reset. The 80386, arriving three years later, made protection usable -- adding paging, a flat 32-bit address space, per-page User/Supervisor control, and Virtual 8086 mode so that DOS programs could run inside a protected multitasking system. These features made possible Windows 3.0, OS/2, and early Linux.
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2024年12月24日 星期二 新京报
这是该院主任医师成永明独创的“岭南中医无痛蜂疗法”。这些蜜蜂并非普通蜜蜂，而是经过中药饲喂和减毒处理后的岭南野生中蜂。用活蜂蜇刺穴位或者疼痛点，可以产生蜂毒和针灸治疗的双重作用。临床证实，蜂疗对免疫功能低下、哮喘、感冒、风湿病等患者有显著疗效。