A.11
B.5
C.27
D.10
[主观题]20/9,4/3,7/9,4/9,1/4,()A、3/7;B、5/12;C、5/36;D、7/36
[主观题]-1/7,1/7,1/8,-1/4,-1/9,1/3,1/10,()A.-2/5;B.2/5;C.1/12;D.5/8;
设1 1 1 1-|||-4 1 -3 7-|||-0 -2 0 5-|||-2 -3 7 9,1 1 1 1-|||-4 1 -3 7-|||-0 -2 0
[单选题]-1/7,1/7,1/8,-1/4,-1/9,1/3,1/10,()A . -2/5B . 2/5C . 1/12D . 5/8
[单选题]:9,-4,7,4,5,-4,3,4,1,-4,( ),( )。A.0,4B.-1,4C.-1,-4D.1.4
[单选题]9,-4,7,4,5,-4,3,4,1,-4,( ),( )。A.0,4B.-1,4C.-1,-4D.1.4
计算:(1)/(3)×(3)/(5)+1(5)/(7)-(5)/(9)×(5)/(7)1-(5)/(7)×(21)/(25)(1)/(2)+(5)/(4)×(4
[单选题]3,2,4,1,9,7,6,8,( )。A.14B.28C.46D.62
[单选题]3,2,4,1,9,7,6,8,( )。A.14B.28C.46D.62
[单选题]3,2,4,1,9,7,6,8,( )。A.14B.28C.46D.62