Which two models are the models of DiffServ-Aware Traffic Engineering？ （）
- A、Policy-based Model
- B、Class based Model
- C、Russian Doll Model
- D、Global Tunnel Model
- E、Maximum Allocation Model
正确答案:C,E
答案解析:有
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Which two models are the models of DiffServ-Aware Traffic Engineering？ （）
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