()年,世界第一本《速度轮滑比赛规则》在美国诞生。
A. 1936年
B. 1937年
C. 1938年
Your network contains a server named Server1 that runs Windows Server 2008 R2. The disks on Server1 are configured as shown in the following table. Disk name Disk type Disk 0 Internal hard disk drive Disk 1 External hard disk drive Disk 2 Virtual hard disk You run the Backup Once wizard and discover that the option for Full Server backup is unavailable. You need to ensure that you can run a full server backup of Server1. What should you do?()
A. Take Disk 1 offline.
B. Take Disk 2 offline.
C. Run the Set-WBPolicy cmdlet.
D. Run Windows Server Backup as an Administrator.
对于螺纹联接,当两被联接件中其一较厚不能使用螺栓时,则应用()联接或()联接,其中经常拆卸时选用()联接。
门机加减速时间短可导致()。
A. 电机过热
B. 制动电阻过热
C. 过电流
D. 低电压