• 2022-06-04
    下列式子可读作“负10,负6,正3,负7的和”的是().
    A: -10+(-6)+(+3)-(-7)
    B: -10-6+3-7
    C: -10-(-6)-3-(-7)
    D: -10-(-6)-(-3)-(-7)
  • B

    举一反三

    内容

    • 0

      Nunc工厂一次的细胞产量(细胞数)可高达() A: 3×10<sup>5</sup>〜3×10<sup>6</sup> B: 3×10<sup>6</sup>〜3×10<sup>7</sup> C: 3×10<sup>7</sup>〜3×10<sup>8</sup> D: 3×10<sup>8</sup>〜3×10<sup>9</sup>

    • 1

      已知:2×7=10,则3×6=? </p></p>

    • 2

      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 }

    • 3

      27,15,12,______,9,-6。 A: 10 B: 7 C: 5 D: 3

    • 4

      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