Which two statements are true about CAC?()
A. CAC is implemented in the call setup phase to allocate bandwidth resources
B. CAC is implemented in the call maintenance phase to allocate bandwidth resources
CAC is utilized during the call teardown phase to ensure that all resources have been released
D. CAC uses the Cisco RSVP (Resource Reservation Protocol) Agent to integrate call-processing capabilities with the underlying network infrastructure
E. CAC is implemented in the call setup phase to determine the destination of the call
在Excel窗口中,单击工作表边框的左上角,则()。
A. 退出Excel
B. 进入Excel
C. 选定工作表中的所有单元格
D. 删除工作表中的所有单元格
支撑面与体位的关系是支撑面大,体位稳定性好,则容易维持平衡。
A. 正确
B. 错误
可以承受负值负载的节流调速回路是()。
A. 进油路节流调速回路
B. 旁油路节流调速回路
C. 回油路节流调速回路
D. 三种回路都可以