-3立方+1=-26-2立方+2=-6-1立方+3=20立方+4=41立方+5=62立方+6=14选D 还有种算法相差-26 -6 2 4 6 (14) 20 8 2 2 (8) 12 6 0 -6递减6还是选D
B.12