单选题:给定有向图如下。下列哪个选项**不是**对应的拓扑序列?
给定有向图如下。下列哪个选项**不是**对应的拓扑序列? @[D](2)

A. abedfc
B. aedbfc
C. aedfbc
D. abdfce
A.abedfc
B.aedbfc
C.aedfbc
D.abdfce
答案:D

A. abedfc
B. aedbfc
C. aedfbc
D. abdfce
A.abedfc
B.aedbfc
C.aedfbc
D.abdfce
答案:D