【例題】0,0,6,24,60,120,( )
A.180 B.196 C.210 D.216
【例題】2,3,7,45,2017,( )
A.4068271 B.4068273 C.4068275 D.4068277
【例題】2,2,3,4,9,32,( )
A.129 B.215 C.257 D.283
【例題】0,4,16,48,128,( )
A.280 B.320 C.350 D.420
【例題】0.5,1,2,5,17,107,( )
A.1947 B.1945 C.1943 D.1941
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