4,7,20,52,()
A.142
B.261
C.385
D.276
-8,-4,4,20,()A.60 B.52 C.48 D.36
:4,7,20,52,()A.142B.261C.385D.276
-8,-4,4,20,()A.60 B.52 C.48 D.36
2, 7, 20, 57, 166, ()。A· 490 B. 491 C. 276 D. 288
4,7,20,52,() A.142B.261C.385D.276
2,7,20,57,166,()。A.490B.491C.276D.288