1, 9, 7, 27, 13, ( ), 19, 63
- A25
- B33
- C45
- D54
1, 9, 7, 27, 13, ( ), 19, 63
间隔组合数列。奇数项为公差为6的等差数列1、7、13、19,偶数项为公差为18的等差数列9、27、(45)、63。
1/5,3/7,7/11,13/19,3/5,( )A11/47B21/37C31/67D31/47
63,26,7,0,-1,-2,-9,()AA、-18BB、-20CC、-26DD、-28
:1,4/3,13/9,40/27,()。A121/81 B67/81 C121/51 D67/51
1,3,3,5,7,9,13,15(),()AA:19,21BB:19,23CC:21,23DD:27,30
5、设有序表为(13,19,25,36,48,51,63,84,91,116,1
设有序表为(13,19,25,36,48,51,63,84,91,116,135,200),元素的下标依次为1,2,……,12。设查找元素5,需要进行多少次元素间的比较才能确定不能查到。
6、:[6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(
:[6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-……-[6/(97×103)]= ( )A433/567B532/653C522/721D436/673