A.7/5
B.5/6
C.3/5
D.4/3
[单选题]:2,5/3,3/2,7/5,( )。A. 7/5B. 5/6C. 3/5D. 4/3
[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
[试题]3,2,5/3,3/2,()A、1/4;B、7/5;C、3/4;D、2/5
[单选题]1/2,1,2/3,3/4,5/7,()A.7/11B.8/11C.7/13D.8/13
[单选题]:3,2,5/3,3/2,( )A.7/5B.5/6C.3/5D.3/4
[单选题]3,2,5/3,3/2,()A .1/4B .7/5C .3/4D .2/5
[单选题]3,2,5/3,3/2,()A .1/4;B .7/5;C .3/4;D .2/5
[单选题]3,2,5/3,3/2,( )。A.B.C.D.
[单选题]1/5,1/3,3/7,1/2,( )A.5/9B.1/6C.6D.3/5