令 [tex=10.5x1.714]Lif2r1YB/Pvsf9QvmV83ZTEJkv9hI6gyyVSJlbSLsVRSWxPlu/x5wHadDfZFrtStoh6uYGDWbjQN4+zZkINDkjgdQg2IsXTAWdu98BtbRnU=[/tex]计算 [tex=11.857x2.214]bdFZ9klTj5Wjb8lqcblVwWM/NjNH0ZR8zznJiSo0dNDRh0ijE/5pWxHylZg67ifLs9TpKePb+nAnz15b+4g0/85Pyo0A1qKjLysWorzmeydfZXdjoesyn/OwgxmecQEmeNX1OxQZ6t0VOf/eV1sOHu4u1CXoquhRsEE1DKPic9A=[/tex] 证明[tex=15.357x2.214]kfTeBRzS9TWU3BejpKbSxSWSMVHSK0a32HygxODLVcqIhfqvuK+0ga5jVVzO9mC1x9/7zHVe5tfIWBeRqtAKIOIdY4aA4tBnpvlJlYfwQz4olqYWfsRhxnE6hxUjSSVuc1t2CjgfE/SCwvDz9oB9cSWQloZ2LcKMKFXcJwWw9zLrN5NT27mKtNzvtw2W70Oe[/tex]
举一反三
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为？ A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 设DES加密算法中的一个S盒为： 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 14 4 13 1 2 15 11 8 3 10 6 12 5 9 0 7 0 15 7 4 14 2 13 1 10 6 12 11 9 5 3 8 4 1 14 8 13 6 2 11 15 12 9 7 3 10 5 0 15 12 8 2 4 9 1 7 5 11 A: 1010 B: 0001 C: 1011 D: 0111
- 以下程序段实现的输出是（）。for(i=0;i<;=9;i++)s[i]=i;for(i=9;i>;=0;i--)printf("%2d",s[i]);[/i][/i] A: 9 7 5 3 1 B: 1 3 5 7 9 C: 9 8 7 6 5 4 3 2 1 0 D: 0 1 2 3 4 5 6 7 8 9