【例题】1,1, 2, 2, 3, 4, 3, 5,( )
【例题】1,52, 313, 174,( ) A.5 B.515 C.525 D.545
【例题】5, 15, 10, 215, ( ) A.415 B.-115 C.445 D.-112
【例题】-7,0, 1, 2, 9, ( ) A.12 B.18 C.24 D.28
【例题】0,1,3,10,( ) A.101 B.102 C.103 D.104