【1】81,23,( ),127
A. 103; B. 114; C. 104; D. 57
【2】1,1,3,1,3,5,6,( )。
A. 1; B. 2; C. 4; D. 10
【3】48,32,17,( ),43,59。
A.28; B.33; C.31; D.27
【4】21,27,36,51,72,( )
A.95; B.105; C.100; D.102
【5】1/2,1,1,( ),9/11,11/13
A.2; B.3; C.1; D.9
【6】2,3,5,7,11,( )
A.17; B.18; C.19; D.20
【7】2,33,45,58,( )
A.215; B.216; C.512; D.612
【8】20/9,4/3,7/9,4/9,1/4,( )
A.3/7; B.5/12; C.5/36; D.7/36
【9】5,17, 21, 25,( )
A.29; B.36; C.41; D.49
【10】2,4,3,9,5,20,7,( )
A.27; B.17; C.40; D.44