【例題】3, 0, 5, -2, 7, ( )
A.9 B.0 C.-9 D.-4
【例題】6, 11, 17, ( ), 45
A.22 B.25 C.28 D.30
【例題】12, 36, 80, 150, ( )
A.201 B.216 C.248 D.252
【例題】23, 31, 44, 52, 66, ( )
A.80 B.84 C.72 D.74
【例題】2, 9, 64, 625, ( )
A.1728 B.3456 C.7776 D.5184
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