The 386 supports four privilege rings (0 through 3), though in practice nearly all operating systems use just two: ring 0 for the kernel and ring 3 for user programs. Three privilege levels interact on every segment access: CPL (Current Privilege Level), DPL (Descriptor Privilege Level), and RPL (Requested Privilege Level).
昨日，博主「数码闲聊站」发文称，OPPO 新一代旗舰折叠屏手机 Find N6 或成为「全球最平整」的折叠机。（由莱茵测试）
，这一点在雷电模拟器官方版本下载中也有详细论述
但这绝不代表它是一台没有短板的水桶机，若是把关注点放到体感差距最明显的屏幕与影像上，巨大的落差感就来了。
How we tested ergonomic keyboards