由磁场的不规则性形成的不相关显示可能是哪种原因引起的？（）
A. 夹渣
B. 磨削裂纹
C. 零件硬度急剧变化
D. 以上都不是
查看答案
当货物为应税消费品时，对其征收增值税的同时也应对其征收消费税。（）
A. 正确
B. 错误
What is the recommended practice regarding UDLD when implementing it in all fiber-optic LAN ports?（）
Adjust the default hello timers to three seconds for aggressive mode.
B. Enable it in global mode and on every interface you need to support.
C. Enable it in global mode to support every individual fiber-optic interface.
D. Enable it to create channels containing up to eight parallel links between switches.
Enable it in global mode to support every individual fiber optic and Ethernet interface.
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