现代社会的种种特征对教育系统具有（） 双向作用。 指导作用。 重要作用。 决定作用。
TFXl型电子防滑器主机的工作电压范围是（）。 AC（48±14）V。 DC（48±14）V。 AC（220±14）V。 DC（24±14）V。
A user reports a corrupted boot logical volume. In order to recreate the contents of the boot logical volume which of the following procedures should the user be advised to perform?（） Reboot the system in normal mode.。 Use the bosboot command to rebuild the boot image.。 Restore the boot logical volume from a mksysb image.。 Reboot the system into maintenance mode and run fsck on the boot logical volume.。
A system is experiencing performance problems. After checking the CPU usage, the problem identified is that the system is "CPU Bound". Which of the following outcomes will determine if there is a possible CPU constraint?（） Low paging 。 High paging 。 Workload manager is not turned on 。 A high run queue length&e。
提出归因理论的心理学家是（） 耶克斯和多德森。 马斯洛。 韦纳。 多伊奇。
Which commands will list all the logical volumes and the file system distribution across a specific physical volume of the following？（）
