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【单选题】
某系统采用静态抢占式优先级进程调度算法(优先数大者优先级高)。A进程0时刻到达,优先数为5,需运行10s;B进程3时刻到达,优先数为7,需运行5s;C进程5时刻到达,优先数为8,需运行3秒,则CPU的服务顺序为____。A.
A->B->C->A
B.
A->B->C->B->A
C.
A->B->A->C
D.
A->B->C->A->B
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