All of the following statements accurately describe process for administering file systems EXCEPT:()
A logical volume must exist prior to running the crfs command to create a file system
B. A file system must be unmounted before it can be removed
C. Defining a file system imposes a structure on a logical volume
D. Removing a file system using rmfs automatically removes the underling logical volume
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通过改变入口挡板角度来调节流量位入口端节流调节。
A. 正确
B. 错误
1943年中英美发表《开罗宣言》宣布日本所窃取于中国的领土,例如满洲、()、()等.归还中华民国。
采用直流压降法进行直流电阻测试,如电路连接时采用被测电阻与电流表串联后再与电压表并联,则该方法适用于测量()。
A. 小电阻
B. 大电阻
C. 绝缘电阻