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参考答案和解析
参考答案:B
更多“CFT中,SRBC悬液浓度一般为 ( )A、1~2%B、2~5%C、5~6%D、7~9%E、10% ”相关问题
  • 第1题:

    SRBC悬液浓度一般为

    A.1%~2%
    B.2%~5%
    C.5%~6%
    D.7%~9%
    E.10%

    答案:B
    解析:
    制备脱纤维羊血,调制成2%~5%绵羊红细胞(SRBC)悬液。为使红细胞浓度标准化,可吸取少量红细胞悬液,加入一定量缓冲液,在542nm波长处测定透光度为38%~40%。因此,本题最佳答案是B。

  • 第2题:

    下列数组声明初始化语句,________是正确的。

    A.Dim a() As Single={1,2,3,4,5,6,7,8,9,10}

    B.Dim a(9) As Single={1,2,3,4,5,6,7,8,9,10}

    C.Dim a() As Single={1,”a”,”bc”,4,5,6,7,8,9,10}

    D.Dim a(, ) As Integer={1,2,3,4,5,6,7,8,9,10}

    E.Dim a() As Integer=(1,2,3,4,5,6,7,8,9,10)


    int[] nums = new int[]{0,1,2,3,4};;int[] nums2 = {0,1,2,3,4,5};;int[][] num_2 = {{0,1},{0,1,2},{0,1,2,3}};

  • 第3题:

    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=10 Dim a(n) As Single


    int []a[]

  • 第4题:

    数据序列(10,9,8,7,6,5,4,3,2,1)采用二路归并排序方法进行递增排序,第2趟排序结束后的结果是()。

    A.(9,10,7,8,5,6,3,4,1,2)

    B.(7,8,9,10,3,4,5,6,1,2)

    C.(1,2,3,4,5,6,7,8,9,10)

    D.(1,2,3,4,7,8,9,10,1,2)


    B

  • 第5题:

    设W为样本空间,A,B,C是W中的事件,W={1,2,…,10}, A={1,3,5,7,9}, B={2,4,6,8,10},C={6,7,8,9,10},则AÈB-AC-BC=().

    A.{1,3,5,7,9}

    B.{2,4,6,8,10}

    C.{1,2,3,4,5}

    D.{6,7,8,9,10}


    {1,2,3,4,5}