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【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】完全正相关的证券A和证券B，其中证券A方差为30%，期望收益率为14%，证券B的方差为20%，期望收益率为12%。在不允许卖空的基础上，以下说法中，正确的有( )。
A.
最小方差证券组合为B
B.
最小方差证券组合为40%A+60%B
C.
最小方差证券组合的方差为24%
D.
最小方差证券组合的方差为20%
【多选题】主权信用评级与企业信用评级的主要区别有( )。
A.
主权信用评级具有更大的难度
B.
信用评级公司对主权信用评级较易产生分歧
C.
主权信用的风险更大
D.
主权信用评级不涉及判断债务人的偿债意愿