A .25
B .36
C .45
D .49
[试题]2,2,3,6,15,()A、25;B、36;C、45;D、49
[单选题]2, 3, 6, 15, ( )。A.32B.42C.52D.62
[单选题]2,3,6,15,( )A.20B.24C.32D.42
[单选题]2,3,6,15,( )A.20B.24C.32D.42
[主观题]1,2,2,6,3,15,3,21,4,()A.46;B.20;C.12;D.44;
[单选题]1,2,2,6,3,15,3,21,4,()A . 46B . 20C . 12D . 44
[单选题]-2,3,-6,15,-42,( )A. -51B. -84C. 79D. 123
[试题]4,2,2,3,6,()A、6;B、8;C、10;D、15
[主观题]计算。7/8-5/6=2/9+1/2=6/7-2/3=3/10+1/4=3/7+1/9=1/3-1/5=1/6+1/4=5/7-1/5=
[单选题]:1,2,6,15,31,( )A.46B.61C.66D.56