• 2022-06-29
    向量场[tex=11.714x1.571]NUgFXiVsQqU++NZHN/F6GQS2xObyV2fFuTjWG5gmNvsCa9PfJ4Nnc8EeeGqHog0TviS4PvYqwAabHoDhmA5UCg==[/tex] 在点 [tex=3.214x1.357]Rgv+yyqp9XI22cYj2wkzPg==[/tex] 处的旋度[tex=2.857x0.929]uqh+oOvD2P9iqZ7dD7XO1KLPNa0Br+00NF35eTr4Ax4=[/tex]______.
  • [tex=5.286x1.357]xuGwfSbPLnh7956z3Uooew==[/tex]由 [tex=14.714x4.5]uqh+oOvD2P9iqZ7dD7XO1OUn1hUJjaGIUmgtgyLTxI3kRWb8UJUz0mweSlE5s6fMKlLP3Zf0ZBOkf9cdB5rouJqlNs+SM9Y3YH2Bx6NviSEyEElMkCBYJSPYx6w9g2wTainOCZAzPi7itw2RbcpKDmHK8PI7O6tfyT4g6cizgbIJEkT1CZ9BgKjPmmOkvBmjG26iqq1RDzXk+fpfzcX+T5xZswgSVEAvOdUNzpq7qe0=[/tex]      [tex=13.286x1.571]Zaq/gb4YV3pZHXT45bF5xnIDAnhLRkvZ/piGLSDYxJugxo+DGfPvWC13+87Rgvk94kE0RvpCZxOF3luZhNpxTg==[/tex]得 [tex=10.5x1.571]pmmcid6S5ZRQAYSz7Wd/OlnT9X1fWd8OCK8MUsFYYDI9Cr3lDSQW3ZxWAyXQ06a6Xmza91H6QJuFNEQos1rJyQ==[/tex]

    举一反三

    内容

    • 0

      【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]

    • 1

      【阅读理解(选择)/完型填空】基于以下描述回答 1-2 题: 下表是 9 名评委对 10 名学生的毕业设计进行等级评定结果: 评委 A B C D E F G H I J 1 1 2 4 3 9 6 5 8 7 10 2 1 4 2 5 6 7 3 10 8 9 3 1 3 4 5 2 8 9 6 10 7 4 1 3 4 5 2 6 10 8 7 9 5 1 9 2 5 6 3 4 8 10 7 6 1 4 9 2 5 6 7 3 10 8 7 1 3 5 10 2 6 9 7 8 4 8 1 3 5 7 6 4 8 10 2 9 9 1 2 8 4 9 6 3 7 5 10

    • 2

      下面语句的输出结果是?range(len('HelloWorld')) A: [1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11] B: 11 C: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] D: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]

    • 3

      当执行下面的语句定义一维数组a后,此数组的所有元素为 ( ) inta[10]; A.a[1],a[2],a[3],a[4],a[5],a[6],a[8],a[9],a[10],a[10] B.a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9] C.a[0],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],a[10] D.a[1],a[2],a [3],a[4],a [5],a [9],a [7],a [8],a [9],a [10],a [11]

    • 4

      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