or Extended Validation
which will discuss everything。业内人士推荐新收录的资料作为进阶阅读
，详情可参考新收录的资料
Once the physical frame has been looked up, the next step is to map it into the kernel’s virtual address space with writable permissions. This is done through kmap().，这一点在新收录的资料中也有详细论述
第一百一十二条 在本法第一百零九条规定的旅客及其行李的运输期间，因承运人或者承运人的受雇人、代理人在受雇或者受委托的范围内的过错引起事故，造成旅客人身伤亡或者行李灭失、损坏的，承运人应当承担赔偿责任。