Which two pairings match the application with the correct Cos value？（）
- A、CoS 0 = Best-Effort Data
- B、CoS 1 = Best-Effort Data
- C、CoS 3 = High Priority
- D、CoS 4 = High Priority Data
- E、CoS 5 = Voice Bearer
- F、CoS 7 = Voice Bearer
正确答案:A,E
答案解析:有
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