• 2022-06-29
    以下表达式错误的是( )。
    A: 3+7/4
    B: 10-abs(-2.4)
    C: right(“abcd”,2)+2
    D:
    E: 2011-9-9
    F:
  • C
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    • 0

      下列数组声明语句中,不正确的是_________。 A: Dim a(9) As Single = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} B: Dim a() = {1, 2, 3, 4, 5, 6, 10} C: Dim a( ,) As Single = {{1, 2, 3, 4, 5}, {6, 7, 8, 9, 10}} D: Dim a() As Single = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} E: Dim n As Integer=10Dim a(n) As Single

    • 1

      以下程序的输出结果是___________。for i in range(1,11): print(i, end = " ") A: 1 2 3 4 5 6 7 8 9 B: 1 2 3 4 5 6 7 8 9 10 C: 1 2 3 4 5 D: 1 3 5 7 9

    • 2

      已知一中缀表达式为:6*2*(7+5)+2*(6+9/3),则等值的后缀表达式是( )。 A: 6 2 * 7 5 + * 2 6 9 3 / + * + B: 6 2 7 5 + * * 2 6 9 3 / + * + C: 6 2 * 7 5 + * 9 3 / 6 + 2 * + D: 6 2 7 5 + * * 2 6 9 + 3 / * +

    • 3

      >>>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']

    • 4

      下列数组声明语句中正确的是( )。 A: Dim A(9) As Single = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 } B: Dim A( ) As Single = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 } C: Dim A( ) As Single = { 1, "abc", "ccc", 4, 5, 6, 7, 8, 9, 10 } D: Dim A( , ) As Single = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }