单选题 The ()scheduler moves a process from one process state to another.
A. job
B. process
C. virtual
D. queue
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单选题 To prevent (), an operating system can put resource restrictions on processes.
A. starvation
B. synchronization
C. paging
D. deadlock
单选题 ( ) can occur if a process has too many resource restrictions.
A. starvation
B. synchronization
C. paging
D. deadlock
填空题 An ____facilitates the execution of other software, acts as the general manager of computer system, and ensures the efficient use of hardware and software.
填空题 The operation system oversees the ____manager, the ____manager, the device manager, the file manger, and the user interface.