11,17,(),31,41,47
- A19
- B23
- C27
- D29
11,17,(),31,41,47
答:选B,隔项质数列的排列,把质数补齐可得新数列:11,13,17,19,23,29,31,37,41,43,47.抽出偶数项可得数列:11,17,23,31,41,47
1、已知行列式D=,则A11+A21+A31+A41=()。
已知行列式D=,则A11+A21+A31+A41=()。Aa-bB0Ca-dDb-d
:1,1,3,7,17,41,( )。A89 B99 C109 D119
31 29 23 ( ) 17 13 11A21 B 20 C 19 D 18
11,4.21,16.31,64.41,( )A16.51B33.51C81.62D256.51
31, 29, 23, ( ), 17, 13, 11A21B20C19D18
6、1.11, 4.21, 16.31, 64.41, ( )。
1.11, 4.21, 16.31, 64.41, ( )。A16.51 B33.51 C81.62 D256.51