A.276
B.228
C.183
D.155
[单选题]13, 23, 31, 44, 55, ( )。
[单选题]13, 23, 31, 44, 55, ( )A.68B.62C.71D.43
[单选题]2/3,3/5,5/8,9/13,()A.2/3B.5/7C.16/21D.17/22
[单选题]28 3 , 3 , 5 , 7 , 9 , 13 , 15 ,(),()A. 19 , 21B 19 , 23C 21 , 23D 27 , 30
[单选题]:1, 3, 3, 5, 7, 9, 13, 15, ( ), ( )。A.19,21B.19,23C.2l,23D.27,30
[单选题]13,23,31,44,55,()。A. 68 B. 62 C. 71 D. 43
[单选题]:1,3,3,5,7,9,13,15,( ),( )。A.19,21 B.19,23 C.21,23 D.27,30
[单选题]1,3,3,5,7,9,13,15(),()A . A:19,21B . B:19,23C . C:21,23D . D:27,30
[单选题]6,3,5,13,2,63,( )。A.-36B.-37C.-38D.-39
[单选题]6,3,5,13,2,63,( )。A.-36B.-37C.-38D.-39