多项选择题

Which three of these Metro Ethernet services map to E-Line services that are defined by the MEF？（）

A. Ethernet Private Line
B. Ethernet Wire Service
C. Ethernet Relay Service
D. Ethernet Multipoint Service
E. Ethernet Relay Multipoint Service

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CCDP(642-874)

Which three of these Metro Ethernet services map to E-Line services that are defined by the MEF？ （）

Which three of these Metro Ethernet services map to E-Line services that are defined by the MEF？（）