设[tex=8.286x1.286]RAqV7ukGdd6qsPmOrCurzwjauB/KBg6ezlDwGnMcHEAvXH3Vq8BPbhW5z17EDbaLbV7iu1UsUSrxcYIJb1R4N6XsvqRrGxabnlP2yag6GWM=[/tex]为四阶矩阵,[tex=1.143x1.286]TvSdGE1Yfrol50wGLH8g9Q==[/tex]为其伴随矩阵,若[tex=4.643x1.286]x1eTBpIle96ZR/xtGzfVMesboCm18EvkIdnAj8fpTz0=[/tex]时方程组[tex=3.357x1.286]X2hN7n3UmL0lWQo53x55cw==[/tex]的一个基础解系,则[tex=3.786x1.286]6IID9hgzBS2yqnfzY5LmXg==[/tex]的基础解系为[input=type:blank,size:6][/input] .
未知类型:{'options': ['[tex=2.571x1.286]bjwWbPZMxIzgZXqdIskj43mm2BKJQSN/9T8Jhfq9XI8=[/tex]', '[tex=2.571x1.286]bjwWbPZMxIzgZXqdIskj47FvL96YCbM9B0OsyDzozco=[/tex]', '[tex=4.0x1.286]bjwWbPZMxIzgZXqdIskj4zd17uK34ts6LSyYubSFDkE9kfqXE0Gd4bTZc/YJv8kS[/tex]', '[tex=4.071x1.286]x7GJBzcL50igl48mjtXPZQyNxmqXYAOzwEb5vib1mVHBdoRjemW/sQgi8rigQWti[/tex]'], 'type': 102}
未知类型:{'options': ['[tex=2.571x1.286]bjwWbPZMxIzgZXqdIskj43mm2BKJQSN/9T8Jhfq9XI8=[/tex]', '[tex=2.571x1.286]bjwWbPZMxIzgZXqdIskj47FvL96YCbM9B0OsyDzozco=[/tex]', '[tex=4.0x1.286]bjwWbPZMxIzgZXqdIskj4zd17uK34ts6LSyYubSFDkE9kfqXE0Gd4bTZc/YJv8kS[/tex]', '[tex=4.071x1.286]x7GJBzcL50igl48mjtXPZQyNxmqXYAOzwEb5vib1mVHBdoRjemW/sQgi8rigQWti[/tex]'], 'type': 102}
举一反三
- 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}
- 设随机变量X服从标准正态分布,X~N(0,1),则[tex=4.357x1.357]N96gAKyTxAFJGbzY6VEFhgJk69lxWJAsOnu5yxPIE60=[/tex][input=type:blank,size:6][/input].
- >>>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']
- 若要将一个长度为N=16的序列x(n)重新位倒序,作为某一FFT算法的输入,则位倒序后序列的样本序号为( )。 A: x(15), x(14), x(13), x(12), x(11), x(10), x(9), x(8), x(7), x(6),<br/>x(5), x(4), x(3), x(2), x(1), x(0) B: x(0), x(4), x(2), x(6), x(1), x(5), x(3), x(7), x(8), x(12), x(10),<br/>x(14), x(9), x(13), x(11), x(15) C: x(0), x(2), x(4), x(6), x(8), x(10), x(12), x(14), x(1), x(3), x(5),<br/>x(7), x(9), x(11), x(13), x(15) D: x(0), x(8), x(4), x(12), x(2), x(10), x(6), x(14), x(1), x(9), x(5),<br/>x(13), x(3), x(11), x(7), x(15)
- 6个顶点11条边的所有非同构的连通的简单非平面图有[tex=2.143x2.429]iP+B62/T05A6ZTM0eeaWiQ==[/tex]个,其中有[tex=2.143x2.429]ndZSw3zT0QTOVLVdoUto1Q==[/tex]个含子图[tex=1.786x1.286]J+vVZa2YaMpc6mJBbqVvWw==[/tex],有[tex=2.143x2.429]lmhx48evnQMhi03NovPXig==[/tex]个含与[tex=1.214x1.214]kFXZ1uR8GjycbJx+Ts2kyQ==[/tex]同胚的子图。供选择的答案[tex=3.071x1.214]3KinXFh3SXhZ7nIe1y9KEV6aadxhhJWeEy6Dij1iObdMUZkY6ZA5J2dVVjPSuhEf[/tex]:(1) 1 ;(2) 2 ;(3) 3 ; (4) 4 ;(5) 5 ;(6) 6 ; (7) 7 ; (8) 8 。