在窗体上画一个名称为Drive1的驱动器列表框,—个名称为Dir1的目录列表框。当改变当前驱动器时,目录
A.Drive1_Change
B.Drive1_Click
C.Dir1_Click
D.Dir1_Change
A.Drive1_Change
B.Drive1_Click
C.Dir1_Click
D.Dir1_Change
A、Dir1.Path = Drive1.Drive
B、Dir1.Drive = Drive1.Drive
C、Drive1.Drive = Dir1.Path
D、Dir1.Path = Drive1.Path
A. Dir1.Path=Drive1.Drive′位于Drive1 Change()过程
B. Dir1.Path=Drive1.Drive′位于Dir1 Change()过程
C. Dir1.Path=Drive1.Path′位于Dir1 Change()过程
D. Dir1.Path=Drive1.Path′位于Drive1 Change()过程
A.72 36
B.108 36
C.72 6
D.108 6
A. Mid(S,4,4)
B.Middle(S,4,4)
C.Midstr(S,4,4)
D.MiddleStr(S,4,4)
A.下拉式组合框
B.弹出式组合框
C.简单式组合框
D.下拉式列表框
A.VScrolll.Value= 100
B.VScrolll.Value= 30
C.VScrolll.Value = 4 * 30
D.VScrolll.Value = -100 - 50
A.10 10 10
B.30 30 30
C.30 30 10
D.10 30 30
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