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举一反三
【单选题】Excel 2010中,对"清除"和"删除"功能的描述,错误的是 。
A.
"清除"不能删掉单元格中某些类型的数据
B.
它们只对选定的单元格区域起作用，其它单元格中的内容不会受到影响
C.
"删除"的对象不只是单元格中的内容，而且还有单元格本身
D.
"清除"只是删除单元格中的内容
【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
【单选题】如图所示装置，电流计的指针发生偏转，正极变粗，负极变细，符合这种情况的是（ ）
A.
正极Cu，负极Al，S为浓HNO3
B.
正极Ag，负极Fe，S为CuSO4
C.
正极Al，负极Cu，S为浓HNO3
D.
正极Zn，负极Cu，S为CuSO4