A.17;B.27;C.30;D.24;
[单选题]1,3,3,6,7,12,15,()A .17B .27C .30D .24
[主观题]计算。5/12+1/12=14/15-4/15=3/7-3/7=3/8+3/8=3/10+1/10=5/8-1/8=
[单选题]1,3,3,6,7,9,13,12,( ),( )。A.19.18B.19,15C.21,15D.27,18
[单选题]3,15,7,12,11,9,15,( )。A.6B.8C.18D.19
[单选题]:3,15,7,12,11,9,15,( )。A.6 B.8 C.18 D.19
[单选题]3,7,12,15,9,-18,( )。A.-27B.-45C.-81D.-102
[单选题]3,7,12,15,9,-18,( )。A.-27B.-45C.-81D.-102
[单选题]3,7,12,15,9,-18,( )。A.-27B.-45C.-81D.-102
[单选题]3,7,12,15,9,-18,( )。A.-27B.-45C.-81D.-102
[单选题]3,7,12,15,9,-18,( )。A.-27B.-45C.-81D.-102