A.
B.
C.
D.
2.7,11,13,17,19,31,47,41,( )
A.63
B.195
C.55
D.5
3.4,13,61,202,124,( )
A.650
B.723
C.888
D.976
4.31,37,41,43,( )
A.51
B.45
C.49
D.47
5.-10, 30, -50, 70, ( )
A.90
B.1/90
C.-90
D.1
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