A.7/24;B.7/25;C.5/26;D.7/26;
[主观题]19/13,1,19/13,10/22,()a.7/24;b.7/25;c.5/26;d.7/26;
[单选题]13,19,11,22,( ),25,7,( )。A.15 26B.25 24C.16 18D.9 28
[单选题]:[6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-……-[6/(97×103)]= ( )A.433/567B.532/653C.522/721D.436/673
[单选题]1, 9, 7, 27, 13, ( ), 19, 63A.25 B.33 C.45 D.54
[单选题]:5,19,8,16,11,13,14,10,( )A.13B.11C.18D.17
[单选题]5,19,8,16,11,13,14,10,( )A.13B.11C.18D.17
[单选题]1,9,7,27,13,( ),19,63A.25B.33C.45D.54
[单选题]1,9,7,27,13,( ),19,63。A.25B.33C.45D.54
[单选题]1,9,7,27,13,( ),19,63。A.25B.33C.45D.54
[单选题]7,6,13,8,19,( )A.10B.11C.14D.17