20/9,4/3,7/9,4/9,1/4,()A、3/7;B、5/12;C、5/36;D、7/36
20/9,4/3,7/9,4/9,1/4,( )
A、3/7;B、5/12;C、5/36;D、7/36
相关考题:
2、已知集合A={1,3,5,7,9},B={2,3,4,7,10},则A∩B=A.{3,7}B.{1,2,3,4,5,7,9,10}C.{1,5,9}D.{1,2,4,5,9,10}
20/9,4/3,7/9,4/9,1/4,( )
A、3/7;B、5/12;C、5/36;D、7/36