l.---I am sorry to have ____ too much of your time. ---That's OK, and I am glad to help you.A. taken up B. taken on C. taken off D. taken in 答案:A如图所示,正方形网格中,为格点三角形(即三角形的顶点都在格点上). (1)把沿方向平移后,点移到点,在网格中画出平移后得到的; (2)把绕点按逆时针方向旋转,在网格中画出旋转后的; (3)如果网格中小正方形的边长为1,求点经过(1)、(2)变换的路径总长.