A.25
B.32
C.43
D.46
[单选题]1 3 5 11 21 ( ) 85A.33B.41C.43D.53
[单选题]3,5,11,21,()A .42B .40C .41D .43
[单选题]1,1,3,5,11,( )A.8 B.13 C.21 D.32
[单选题]1/2,3/2 ,11/8 ,21/32 ,( )A. 7/64B. 25/64C.12/31D. 13/64
[单选题]第 31 题 11/3 , 7/3 , 1, , -5/3A.7/3B.-1/3C.5/3D.4/3
[单选题]1,3,5,11,( )。A.15B.73C.19D.21
[单选题]1,3,5,11,( )。A.15B.73C.19D.21
[单选题]1,3,5,11,( )。A.15B.73C.19D.21
[单选题]1,1,3,3,7,5,13,7,21,( )。A.9B.11C.8D.22
[主观题]计算。1/9+5/9+2/9=6/11+3/11+1/11=1/4+1/4+3/4=7/10-1/10-3/10=11/6-7/6-1/6=1-2/3-1/3=