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In SDH， what is the name of the embedded Data Communication Channel （DCC） in bytes D1-D3？（）
- A、 the DCC-E
- B、 the DCC-M
- C、 the DCC-R
- D、 the Line DCC
- E、 the Section DCC
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更多 “In SDH， what is the name of the embedded Data Communication Channel （DCC） in bytes D1-D3？（）A、 the DCC-EB、 the DCC-MC、 the DCC-RD、 the Line DCCE、 the Section DCC” 相关考题
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