2/3,1/2,3/7,7/18,()A、4/11;B、5/12;C、7/15;D、3/16

2/31/23/77/18,( 

A4/11B5/12C7/15D3/16


相关考题:

1/3,4/7 ,7/11 ,2/3 ,13/19 ,( )A. 16/21B. 16/23C. 18/21D. 17/21

2/3,1/2,3/7,7/18,()A.5/9;B.4/11;C.3/13;D.2/5

2/3 ,1/2 ,5/9 ,( ),11/15A.2/5B.6/11C.3/4D.7/12

1/3,4/7 ,7/11 ,2/3 ,13/19 ,( ) A. 16/21B. 16/23C. 18/21D. 17/21

1/3,1/2,3/5, ( ) ,5/7,3/4A.2/5 B.1/3 C.2/3 D.3/4

1/3,1/2,3/7,5/11,4/9,( ?)A.13/29B.11/27C.9/25D.15/31

18A. 9, 12, 15, ( ), 22, 25B. 2, 2, 4, 6, 10, ( ), 26C. 2, 12, 3, 14, 5’ 15, 7, 16, 11,( )D. 1, ( ), 81, 256, 625

2/3,1/2,5/9,( ),11/15 A. 2/5B. 6/11C. 3/4D. 7/12

A=[1,2,3,4,5;6,7,8,9,10;11,12,13,14,15;16,17,18,19,20]; A(2:3,1:3:5)为()。A.[6,7,8,9,10;11,12,13,14,15]B.[6,8,10;11,13,15]C.[1,3,5;6,8,10;11,13,15;16,18,20]D.以上都不对。