因果研究
What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?() [" 79xx IP phones do not automatically mark voice packets with non-zero DSCP values."," 79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values."," 79xx IP phones do not mark voice packets with optimal DSCP values."," 79xx IP phones use a custom protocol to communicate CDP information to the switch."]
影响火灾的气象因素包括()。 ["大风","降水","高温","雷击","爆炸"]
淋积矿床
资产负债表中“应收账款”项目的期末数包括()。 ["“应收账款”科目所属相关明细科目的期末借方余额","“预收账款”科目所属相关明细科目的期末借方余额","“其它应收款”科目所属相关明细科目的期末借方余额","“预付账款”科目所属相关明细科目的期末借方余额","“应付账款”科目所属相关明细科目的期末借方余额"]
什么叫电流强度?