题目内容
下列各项步骤中,哪一个不是创建进程所必需的步骤?
2021-12-26
A.建立一个进程控制块PCB
B.由CPU调度程序为进程调度CPU
C.为进程分配内存等必要的资源
D.将PCB链人进程就绪队列
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