• 2022-06-30
    求下列曲线的弧微分[tex=5.643x1.571]9qljVJqKnxG8+g8RP2x9Lgi7Hh2PyxLIEzDCwDJnD+0=[/tex]
  • [tex=20.929x3.357]y4P2rFGiCrZYvm8e6mlNjzoa/9cbQuNfHbkfLDUgjgGo4V/hVnxyywoAzt3S6rCgOl+16EtbvDI0vl7Wd6LqY5RexjgTEG5QqSGE8g123Ucc4iylLwviSKXE/ZOt5S2dk3KKhDbnBhYnyb+XsSu+rzWDxgawoNK4kR85nqZ/SWxTX/lN2DBmvD/JYRtSp5Mu[/tex]

    内容

    • 0

      设int a = 9,b = 8,c = 7, x = 1;则执行语句后x的值是: if (a>7) if (b>8) if (c>9) x=2 ; else x = 3;

    • 1

      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}

    • 2

      >>>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']

    • 3

      假设“☆”是一种新的运算,若3☆2=3×4,6☆3=6×7×8,x☆4=840(x>0),那么x等于: A: 2 B: 3 C: 4 D: 5 E: 6 F: 7 G: 8 H: 9

    • 4

      int x,y,z; x=7; y=8; z=9; if(x>y) x=y; y=z; z=x; printf(“x=%d y=%d z=%d\n”,x,y,z);以上程序段的输出结果是:() A: x=7 y=8 z=9 B: x=7 y=9 z=7 C: x=8 y=9 z=7 D: x=8 y=9 z=8