单项选择题
A.选择图片框,然后按Del键 B.执行语句Picture1.Picture = LoadPicture ("") C.执行语句Picture1.Picture ="" D.选择图片框,在属性窗口中选择Picture属性条,然后按回车键
A.Command1.Move -200 B.Command1.Move 200 C.Command1.Left = Command1.Left + 200 D.Command1.Left = Command1.Left - 200
A.1 B.True C.False D.2