A.4
B.2
C.3
D.1
[单选题]12,2,2,3,14,2,7,1,18,3,2,3,40,10,( ),4A.4B.2C.3D.1
[单选题]2,5,1,12,3,2,2,14,2,1,7,36,4,( ),3A.1B.2C.3D.4
[主观题]2/3,1/2,3/7,7/18,()A、4/11;B、5/12;C、7/15;D、3/16
[主观题]计算。4/3-(2/5+3/10)5/7+1/4-9/143/4+3/6-5/8
[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]1 21 31 44 315 7( ) 13A.18 B、20 C、24 D、40
[试题]2/3,1/2,3/7,7/18,()A.5/9;B.4/11;C.3/13;D.2/5
[单选题]2/3,1/2,3/7,7/18,()A .4/11B .5/12C .7/15D .3/16
[单选题]12, 3,4, 2, 2, 1, ( )。A.4B.8C.1D.2
[单选题]12,3,4,2,2,1,( )。A.4B.8C.1D.2