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【单选题】
A new router is added to an existing HSRP standby group. One of the existing routers is in anactive state， the other is in a standby state. Under what circumstance will the new router becomethe active router？（）A.
The new router will become active immediately because it’s the newest router introduced intothe group
B.
The new router can become active only when the existing active router and the existing standbyrouter become unavailable
C.
The new router has a lower priority value
D.
The new router will never become active unless the existing active router becomes unavailable
E.
The new router has preempt configured and a higher priority
F.
The new router has a higher priority value
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【多选题】施工准备阶段，专业监理工程师应做好( )监理工作。
A.
检查承包人报送的测量放线控制成果及保护措施
B.
审查承包单位开工报表及相关资料
C.
审查分包单位资格报审表及相关资料
D.
参加设计交底会
E.
审查分包单位的业绩