【1】2, 5, 10, 50,( )
A.100 B.200 C.250 D.500?
【2】100, 50, 2, 25,( )
A.1 B.3? C.225 D.25
【3】1, 4, 9, ?( )?, 25, 36
A.10 B.14? C.20 D.16?
【4】66, 83, 102, 123,( )
A.144 B.145?C.146 D.147?
【5】8, 8, 6, 2,( )
A.-4 B.4? C.0 D.-2?
【6】1, 8, 27,( )
A.36 B.64? C.72 D.81?
【7】0, 6, 24, 60, 120, ( )
A.186 B.210?C.220 D.226?
【8】257, 178, 259, 173, 261, 168, 263,?( )
A.275 B.279?C.164 D.163
【9】3, 8, 6, 24, 12, 72, 24, ( )
A.216 B.48? C.144 D.36
【10】123, 456, 789, ( )
A.1122 B.101112?C.11112 D.100112?