A.37
B.49
C.47
D.52
[单选题]12,9,18,33,96,21,( ),( )。A.39,3B.12,24C.26,27D.36,51
[单选题]:3,6,12,2l,33,( )A.44B.46C.48D.50
[单选题]36,21,15,6,(),-3,12。A. 2 B. 3 C. 7 D. 9
[单选题]2 6 21 43 82 ( )A . 130B . 134C . 144D . 156
[单选题]-2,6,6,-12,12,-36,()A.144B.-108C.-196D.256
[单选题]设向量组(Ⅰ):α1=(a11,a21,a31)T,α2=(a12,a22,a32)T,α3=(a13,a23,a33)T,向量组(Ⅱ):β1=(a1
[单选题]设向量组(Ⅰ):α1=(a11,a21,a31)T,α2=(a12,a22,a32)T,α3=(a13,a23,a33)T,向量组(Ⅱ):β1=(a1
[单选题]设向量组(Ⅰ):α1=(a11,a21,a31)T,α2=(a12,a22,a32)T,α3=(a13,a23,a33)T,向量组(Ⅱ):β1=(a1
[单选题]2,2,6,12,27,( )A.42 B.50 C.58.5 D.63.5
[单选题]13, 17, 21, 25, ( ), 33。A.27B.29C.31D.32