1 ,1 ,0.8,9/13 ,11/17 () a 56/89 b 13/23 c 17/27 d 45/97 选什么
1 ,1 ,0.8,9/13 ,11/17 () a 56/89 b 13/23 c 17/27 d 45/97 选什么
A B C D E F G 1 3 5 7 9 11 23 21 19 17 15 13 25 27 29 31 33
已知实数a,b,c满足a+b+c=11与1/a+b+1/b+c+1/c+a=13/17,求c/a+b+a/b+c+b/c
A B C D × 9 ___________________ D C B A (1) A = ( )(2) B = (
2,3,6,9,17,( ) ..a:33 b:27 c:45 d:19..选那个?
数字推理 5 13 ( ) 23 43 A、9 B、14 C、17 D、19
1,2,3,6,11,()A16 B 17 C 18 D 190,8,24,48,()A 56 B 64 C 72 D
找规律 ()中应填什么 2,2,0,7,9,9,() a.13 b.12 c.18 d.17
行测 0,1,1,2,5,9 () A.11 B.14 C.17 D.18
1/3 3/9 2/3 13/21 ( )A.17/27 B.17/26 C.19/27 D.19/28答案是B为什么?
已知a>b>c>d,求证1/a-b+1/b-c+1/c-a>=9/a-d
1/3,/3/9,2/3,13/21,( )A.17/27 B.17/26 C.19/27 D.19/28答案是A