我们的时钟同步网信号是通过()传递的,映射过程会对时钟性能产生影响。
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The user base of a three-node cluster has increased. In order to add clustered users to all nodes, which of the following steps should be performed?()
A. On one of the nodes,add the users via C-SPOC ’Add a User to the Cluster’smit menu.
B. Use C-SPOC to synchronize the password files between cluster nodes.
C. On all of the nodes,add the users to the /etc/passwd and system security files,and then synchronize the cluster.
D. On one of the nodes,add the users to the /tec/passwd and system security files,add home directories,and use cron to automate the movement of system security files between nodes.
冲击地压区域物料固定方式(),轨道固定方式(),皮带固定方式与()。
一般来说,运输量越大,运输距离越远,运输的速率越高,运输成本就越高。
A. 正确
B. 错误
用差额内部收益率法对计算期不同的互斥方案进行比选,其判别准则是()。
A. △IRR>iC,则年均净现金流大的方案为优
B. △IRR<iC,则年均净现金流大的方案为优
C. 0<△IRR<iC,则年均净现金流大的方案为优
D. △IRR<0,则年均净现金流大的方案为优