【单选题】Which of the following best explains why increasing marginal costs of production arise? a. The factor endowments vary across countries. b. All the factor inputs are not fully utilized in the productio...
【单选题】窗体上有一个命令按钮Command1,编写如下事件过程: Private Sub Command1_Click() Sum = 0 For m = 1 To 3 Select Case m Case 1 a = 1 Case 2 a = 2 Case 3 a = 3 End Select Print a, Sum = Sum + a Next m Print Sum End Sub 运行时,单击按...
【单选题】在窗体上有一个命令按钮Command1,编写事件代码如下: Private Sub Command 1_Click() Dim x As Integer,y As Integer x=12:y=32 Call Proe(X,Y) Debug.Print x;y End Sub Public Sub Proc(n As Integer,ByVal m As Integer) n=n Mod 10 m...