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单项选择题
A.abedfc
B.acfebd
C.aebdfc
D.aedfcb
单项选择题
A.15,25,35,50,20,40,80,85,36,70
B.15,25,35,50,80,20,85,40,70,36
C.15,25,35,50,80,85,20,36,40,70
D.15,25,35,50,80,20,36,40,70,85
单项选择题
A.40,50,20,95
B.15,40,60,20
C.15,20,40,45
D.45,40,15,20