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单选题:Which of the following statements is FALSE?

Luz3年前 (2022-11-16)题库464
Which of the following statements is FALSE?



A.A directed acyclic gragh must be a tree.
B.There must be no topological order in a directed graph with a cycle.
C.Topological sorting method can be used to check if there is a cycle in a given directed graph.
D.Partial order is a precedence relation which is both transitive and irreflexive.



答案:A

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