A . 13
B . 12
C . 19
D . 17
[试题]1,2,1,6,9,10,()A.13;B.12;C.19;D.17;
[单选题]17,10,9,6,1,2,( )。A.0B.1C.2D.3
[单选题]17,10,9,6,1,2,( )。A.0B.1C.2D.3
[主观题]计算。1/9+5/9+2/9=6/11+3/11+1/11=1/4+1/4+3/4=7/10-1/10-3/10=11/6-7/6-1/6=1-2/3-1/3=
[单选题]1,3,0,6,10,9,( )A.13 B.14 C.15 D.17
[单选题]1,3,0,6,10,9,( )。A.13B.14C.15D.17
[单选题]1,3,0,6,10,9,( )。A.13B.14C.15D.17
[单选题]1,3,0,6,10,9,( )A.13B.14C.15D.17
[单选题]1,3,0,6,10,9,( )。A.13B.14C.15D.17
[单选题]1,3,0,6,10,9,( )。A.13B.14C.15D.17