A、two red lights
B、one green light
C、one white light
D、one amber light
更多“A list man would expect to see any of the following light signals except （）.”相关的问题
A、the man has been missing for a period of time B、the sea water is very cold and the man is visible C、there is thick fog D、the wind was from astern on the original course
A、the man has been missing for a period of time B、the sea water is very cold and the man is visible C、there is thick fog D、the wind was from astern on the original course
A、Router(config)# access-list 1 deny 172.31.212.74 any B、Router(config)# access-list 1 deny 10.6.111.48 host C、Router(config)# access-list 1 deny 172.16.4.13 0.0.0.0 D、Router(config)# access-list 1 deny 192.168.14.132 255.255.255.0 E、Router(config)# access-list 1 deny 192.168.166.127 255.255.255.255
A、A.给IP报文封装MPLS标签时，直接将IP报文的TOS字段转换成MPLS标签的EXP字段 B、B.标签交换（swap）操作时，EXP字段保持不变 C、C.标签压栈（push）操作时，新压入的外层标签EXP字段继承内层标签的EXP字段 D、D.标签弹栈（pop）操作时，如果弹栈之后是MPLS报文，不会将弹出标签的EXP字段复制到内层标签上；如果弹栈之后为IP报文，不会将EXP字段复制到IP报文的TOS字段
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