A.14,17
B.13,15
C.12,15
D.14,16
[单选题]:1,1,2,3,5,7,( ),( )A.14,17B.13,15C.12,15D.14,16
[单选题]2/3, 1/2, 2/5, 1/3, 9/7,( ).A.1/4B.1/6C.2/11D.2/9
[单选题]1,1,2,3,3,5,5,7,8,(),()A.10,12B.11,14C.9,13D.8,15
[主观题]填空。1/3+7/13=()5/7-2/7=()()-1/12=11/127/5-()=3/5
[单选题]1/5,1/3,3/7,1/2,( )A.5/9B.1/6C.6D.3/5
[单选题]1/2,1,2/3,3/4,5/7,()A.7/11B.8/11C.7/13D.8/13
[主观题]3,2,5/3,3/2,()A、1/2;B、1/4;C、5/7;D、7/3
[试题]3,2,5/3,3/2,()A、1/2;B、7/5;C、1/4;D、7/3
[单选题]:2/3,1/2,2/5,1/3,2/7,( )。A.1/4 B.1/6 C.2/11 D.2/9
[单选题]2/3,1/2,2/5,1/3,2/7,( )。A.1/4B.1/6C.2/11D.2/9