A.1/12
B.1/16
C.1/18
D.1/24
[主观题]-1/2,1/2,-3/8,1/4,-5/32,()A..1/16B..3/32C..-1/36D..-1/64
[单选题]1,2,1/2,-3/4,-5/8,1/16,()A.11/32B.1/8C.1/4D.1/2
[单选题]:15,3,1,3/8,3/25,()。A.0 B.2 C.3/16 D.3/4
[单选题]15,3,1,3/8,3/25,()。A.0 B.2 C.3/16 D.3/4
[单选题]:1/2,2/3,2/5,1/2,8/13,()。A.32/21 B.7/15 C. 9/11 D. 1
[单选题]1/2,2/3,2/5,1/2,8/13,()。A.32/21 B.7/15 C. 9/11 D. 1
[单选题]1/5,1/3,3/7,1/2,( )A.5/9B.1/6C.6D.3/5
[单选题]:1/2,1,9/8,1( )A.23/16B.5/32C.25/32D.7/16
[单选题]1/2,1,9/8,1,( )A.7/16B.5/32C.23/16D.25/32
[单选题]0,1/6,3/8,1/2,1/2,( )A.5/13 B7/13 C5/12 D7/12