A.2400
B.3360
C.4210
D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040
[单选题]2,14,84,420,1680,( )。A.2400B.3360C.4210D.5040