A.30
B.25
C.20
D.15
[主观题]计算。7/8-5/6=2/9+1/2=6/7-2/3=3/10+1/4=3/7+1/9=1/3-1/5=1/6+1/4=5/7-1/5=
[单选题]2,5,1,12,3,2,2,14,2,1,7,36,4,( ),3A.1B.2C.3D.4
[单选题]2,3,1,2,6,7,( )。A. 9B. 5C. 11D. 24
[单选题]2,3,1,2,6,7,( )。A.9B.5C.11D.24
[单选题]2,3,1,2,6,7,( )。A.9B.5C.11D.24
[单选题]2,3,1,2,6,7,( )。A.9B.5C.11D.24
[单选题]2,3,1,2,6,7,( )。A.9B.5C.11D.24
[单选题]2,3,1,2,6,7,( )。A.9B.5C.11D.24
[单选题]2,3,1,2,6,7,( )。A.9B.5C.11D.24
[单选题]2,3,1,2,6,7,( )。A.9B.5C.11D.24