1.15, 30, 60, 120 ,( )
A.240 B.196
C.156 D.144
2.2/3 ,4/7 ,6/11, 8/15, ( )
A.1/2 B.10/19
c.11/19 D.11/23
3.1 ,0, 3 ,-2 ,5 ,-4 ,( )
A.7 B.9
C.11 D.13
4.2 ,5 ,8, 11, 14, ( )
A.16 B.17
C.18 D.20
5.5,14,32,68 ,( )
A.140 B.145
C.135 D.130
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1.A 2.B 3.A 4.B 5.A