A . 16
B . 17
C . 18
D . 19
[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=
[主观题]解下列方程。X-5/6=1X+3/7=3/4X-5/12=3/8
[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 12 36 ( )A.36 B.72 C.108 D.216
[单选题]3 4 6 12 36 ( )A . 72B . 108C . 216D . 288
[单选题]3,4,6,12,36,( )A.36B.72C.108D.216
[单选题]:3,4,6,12,36,( )。A.8 B.72 C.108 D.216
[单选题]:3,4,6,8,12,()。A.14 B.15 C.17 D.19
[试题]3,4,6,12,36,()A.8;B.72;C.108;D.216