1.135,246,7911,81012,( )
A.141618 B.131517 C.131715 D.101214
2.01,10,11,100,101,110,( ),1000
A.001 B.011 C.111 D.1001
3.49/800,47/400,9/40,( )
A.13/200 B.41/100 C.1/100 D.43/100
4.0,-1,3,-7,( ),-31,63,-127
A.9 B.-15 C.15 D.-9
5.2,3,5,7,11,13,( ),19
A.15 B.16 C.17 D.18

