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举一反三
【单选题】采用软件冗余的方法提高系统的可靠性，需要设计N个相同功能的程序模块，这些模块必须（）
A.
由同一组程序员按照相同的规格说明进行编写
B.
由同一组程序员按照不同的规格说明进行编写
C.
由不同的程序员按照相同的规格说明进行编写
D.
由不同的程序员按照不同的规格说明进行编写
【单选题】有如下事件过程：Private Sub Form_Load() Show Dim Arr() As Variant Arr = Array(1, 3, 5, 7, 9, 11, 13, 15) Call converse(Arr) For i = 0 To 7 Print arr(i); Next iEnd Sub 以上程序的功能是，通过调用Converse过程，将数组Arr中的元素逆序存放并输出...
A.
Private Sub converse(dim a() as Variant ) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
B.
Private Sub converse(dim a() as Variant) Dim T Dim J As Integer J = (LBound(A) + UBound(A)) / 2 For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
C.
Private Sub converse(a() As Variant) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
D.
Private Sub converse(a() As Variant) Dim T Dim J As Integer J = Int((LBound(A) + UBound(A)) / 2) For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
【多选题】系统（或机柜）供电冗余切换试验时，试验项目有（）
A.
切断工作电源供电，备用供电自动投入
B.
UPS装置A、B切换
C.
对于n+1冗余供电系统，切断任二路供电
D.
分别关闭I/O站内互为备份的系统电源工作模件或现场电源工作模件