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【单选题】
函数调用 strcat( strcpy(str1,str2), str3 ) 的功能是( )
A.
将串 str1 复制到串 str2 中后再连接到串 str3 之后
B.
将串 str1 连接到串 str2 之后再复制到串 str3 之后
C.
将串 str2 复制到串 str1 中后再将串 str3 连接到串 str1 之后
D.
将串 str2 连接到串 str1 之后再将串 str1 复制到串 str3 之后
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参考解析：
刷刷题刷刷变学霸
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【单选题】关于Python函数的调用，以下描述正确的是（ ）
A.
函数在调用之前无须定义，拿来即用
B.
自定义函数在调用前必须定义
C.
内置函数在调用之前需要导入相应的库
D.
函数和调用只能发生在同一个文件中
【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