单项选择题
A.0< =u< 1,0< =v< 1B.-1< =u< =1,-1< =v< =1C.-1< u< =0,-1< v< =0D.0< =u< 255,0< =v< 255
A.SetMatrixB.PresentC.ResetD.Clear
A.默许资源B.动态资源C.可治理资源D.系统内存资源