Access Matrix with Copy Rights (copy权的存取矩阵 object F F2 domain D execute write' execute read execute execute F2 domain execute write execute read" execute execute re Applied Operating System Concepts 18.11 Silberschatz, Galvin, and Gagne @199918.11 Silberschatz, Galvin, and Gagne ©1999 Applied Operating System Concepts Access Matrix with Copy Rights （copy权的存取矩阵）