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【单选题】
A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）A.
It immediately sends its entire routing table to its neighbors.
B.
EIGRP sends a Hello packet to the DR to inform it of the route failure.
C.
It automatically forwards traffic to a fallback default route until a successor route is found.
D.
It sends queries out to neighbors until a new successor route is found.
E.
It places the route in holddown until LSA updates inform it of a new route to the network.
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【单选题】根据《旅行社条例》规定，受让或者租借旅行社业务经营许可匪的，由旅游行政管理部门或者工商行政管理部门责令停止非法经营，没收违法所得，并处（）的罚款。
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A.
coincides
B.
collides
C.
reconciles
D.
converges
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A.
before Google, searching online was impossible
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before Google, searching online lacked accuracy
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【单选题】One thing that distinguishes the online world from the real one is that it is very easy to find things. To find a copy of The Economist in print, one has to go to a news-stand, which may or may not ca...
A.
before Google, searching online was impossible
B.
before Google, searching online lacked accuracy
C.
before Google, searching online was difficult
D.
Google is easy to use
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