Which three Cisco CRS upgrade paths are supported? （）
- A、Cisco CRS 2.2 to Cisco CRS 3.5
- B、Cisco CRS 2.2 to Cisco CRS 4.0
- C、Cisco CRS 3.1 to Cisco CRS 4.0
- D、Cisco CRS 3.5 to Cisco CRS 4.0
- E、Cisco CRS 4.0 to Cisco CRS 3.0
- F、Cisco CRS 4.0 to Cisco CRS 4.5
正确答案:A,C,D
答案解析:有
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