A.7
B.13
C.15
D.17
[单选题]3,4,5,8,12,( )。A.7B.13C.15D.17
[单选题]3,4,5,8,12,( )。A.7B.13C.15D.17
[单选题]3,4,5,8,12,( )。A.7B.13C.15D.17
[单选题]3,4,5,8,12,( )。A.7B.13C.15D.17
[单选题]3,4,5,8,12,( )A.7B.13C.15D.17
[单选题]3,4,5,6,9,8,12A . 2,3,6,5,4,1,8,9B . 8,3,5,6,2,1,4,9C . 9,2,5,6,3,4,8,1D . 4,1,2,6,8,5,9,3
[主观题]计算。3/7+4/5=5/12+5/8=7/9+6/7=1-2/7-3/7=1/4+1/6+3/4=1/2-1/6=
[单选题]2/5, 3/7, 4/10, 6/14, 8/20, 12/28,______ ( )A.224/56B.14/32C.20/48D.16/40
[单选题]:3,4,6,8,12,()。A.14 B.15 C.17 D.19
[单选题]-2,3,-5,8,-12,( )。A.15B.17C.20D.23