When an IP packet is Layer 3-switched from a source in one VLAN to a destination in another VLAN,which field in a packet will be rewritten? （）
A. Layer 2 TTL
B. Layer 3 TTL
C. Layer 3 source address
D. Layer 3 transport protocol
E. Layer 3 destination addre
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哈尔滨1号线电制动方式只有电阻制动。
A. 正确
B. 错误
The difference between the heights of low and high tide is the（）.
A. period
B. range
C. distance
D. depth
What resource would you recommend to a new Cisco partner for a variety of tools？（）
A. Channel Incentive program
B. Unified Communications for SMB
C. Partner Central
D. Steps to Success
E. Instructions: Number of answers: 1
计算负荷是通过负荷的统计计算求出的、用来按发热条件选择供电系统中各元件的负荷值。
A. 正确
B. 错误
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