:4,2/3,20/27,7/16,36/125,( )
A.39/144
B.11/54
C.68/169
D.7
[单选题]4, 3/2, 20/27, 7/16, 36/125, ( )A.39/144B.11/54C.68/196D.7
[单选题]2/3,1/4,2/5,(),2/7,1/16,A.1/5;B.1/17;c.1/22;d.1/9
[单选题]2/3,1/4,2/5,(),2/7,1/16,A.1/5;B.1/17;C.1/22;D.1/9;
[单选题]-20,12,8,-16,36,-44,( )
[单选题]-20,12,8,-16,36,-44,( )。A.64B.48C.-24D.12
[单选题]-20,12,8,-16,36,-44,( )。A.64B.48C.-24D.12
[单选题]-20,12,8,-16,36,-44,( )。A.64B.48C.-24D.12
[单选题]-3, -16, -27, O, 125, 432, ( )。A.345B.546C.89OD.1029
[单选题]-3,-16,-27,0,125,432,( )。A.345B.546C.890D.1029
[单选题]1/4,2/7,2/5,8/13,1( )A.9/16B.3C.32/19D.28/17