（2）若[tex=4.214x2.0]Wh0BbcsxbdPTUak0FdVk/bstXG4NsKrR79QoYd+59wPHbj0H0yxgCTPkKwNbkMkHiXPRgUO2x5hbJmo73hANJQ==[/tex]存在，试问是否成立[tex=9.214x2.0]Wh0BbcsxbdPTUak0FdVk/bY2L1/r2xj+PmXKKYuo5i3auEUtRxxbi5PqVJQBcwY8NLGYmstV4IpgajN7jynxzL+D4IDcgWyf9j1gZBz2Yp2TDT9+XDe7k5nqGi8HS6mi[/tex]
（2）若[tex=5.857x2.0]Wh0BbcsxbdPTUak0FdVk/bstXG4NsKrR79QoYd+59wM49Xie2admpd7Ij81jMeSh3Cva1Hw9gwAI0jFqxlig6A==[/tex]成立，但不一定有[tex=8.571x2.0]Wh0BbcsxbdPTUak0FdVk/bY2L1/r2xj+PmXKKYuo5i3auEUtRxxbi5PqVJQBcwY8NLGYmstV4IpgajN7jynxzLuCakNZeygpYFj3qykn5a4=[/tex]例如：[tex=9.643x3.643]79Wd/JsaQKi3RBB3vwr8349dSic+2pQrzowavc/7QnzJdfdEMKRQKlSHWD85T6zYJiNhdzht6ZXvbdpnG148JTtd+ZbdcSFH4yWbZWNprjkdDfQYsGWVMDz+nvafJAAyKHLpn0dEVlWWKsl2cEt5Xg==[/tex][tex=9.214x2.786]79Wd/JsaQKi3RBB3vwr832G74UtJK1EQRd4MDKrjMx/p4EqAnq9WQzBR6ktTWfHGkYwszSYDvX2UqSVxYM+jtC67C58GOT78LMRj54/7e0/A5N9R+2oSKeoTW17lf6wHDfD7JBMahlhGLXrWycNVUQ==[/tex]对[tex=2.643x1.429]79Wd/JsaQKi3RBB3vwr830JptJ3vQPvzO+TL10rLHhc=[/tex] [tex=5.429x2.0]Wh0BbcsxbdPTUak0FdVk/UC/iQqUaFa+3oQwGBZbqWqo2pUO15ckJTwxCr7Ra8v/[/tex]而[tex=3.786x1.786]Wh0BbcsxbdPTUak0FdVk/e6wGm7DkHlE2iDZdVIv6AGlefOiy/5lB+U3lzagiPNV[/tex]不存在，[tex=4.429x1.857]7X8EgBT3evGENdr117eiFd5jLNf7/I6FkByDqzMPsg3jVXRDqhMHPx1q2tCpxNvU[/tex]不一定等于[tex=4.214x2.0]Wh0BbcsxbdPTUak0FdVk/bstXG4NsKrR79QoYd+59wPHbj0H0yxgCTPkKwNbkMkHiXPRgUO2x5hbJmo73hANJQ==[/tex]
举一反三
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']
- 【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}
- 【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=
- 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
内容
- 0
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
- 1
下面是图的拓扑排序的是？(多选)[img=340x240]1802faef6ebcc2a.png[/img] A: 2 8 0 7 1 3 5 6 4 9 10 11 12 B: 2 8 7 0 6 9 11 12 10 1 3 5 4 C: 8 2 7 3 0 6 1 5 4 9 10 11 12 D: 8 2 7 0 6 9 10 11 12 1 3 5 4
- 2
list(range(-1,10,2)) A: [0, 2, 4, 6, 8, 10] B: [-1, 1, 3, 5, 7, 9] C: [0, 2, 4, 6, 8]
- 3
【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背
- 4
利用行列式的性质计算下列行列式的值1 2 0 0 02 5 0 0 0 9 8 1 2 37 6 4 5 65 4 7 8 9