A.5/7 B.5/9 C.5/12 D.5/18
[单选题]9£¯30,7£¯20,,3£¯6,1£¯2A.5£¯7 B.5£¯9 C.5£¯12 D.5£¯189/30,7/20, ,3/6,1/2A.5/7 B.5/9 C.5/12 D.5/18
[主观题]1/2,1/6,1/12,1/30,()A.1/42;B.1/40;C.11/42;D.1/50;
[试题]1/2,1/6,1/3,2,(),3,1/2A.4;B.5;C.6;D.9
[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=
[主观题]1/6,1/6,1/12,1/24,()A.1/48;B.1/28;C.1/40;D.1/24;
[单选题]1,1/3,1/6,1/10,( )A.1/15B.1/12C.1/16D.1/20
[单选题]:1,1/3,1/6,1/10,( )。A.1/15B.1/12C.1/16D.1/20
[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