16.
如图,如果将△ABC先向右平移1个单位长度,再绕原点O顺时针旋转90°,得到△A1B1C1,那么点A的对应点A1的坐标为( )
0 282650 282658 282664 282668 282674 282676 282680 282686 282688 282694 282700 282704 282706 282710 282716 282718 282724 282728 282730 282734 282736 282740 282742 282744 282745 282746 282748 282749 282750 282752 282754 282758 282760 282764 282766 282770 282776 282778 282784 282788 282790 282794 282800 282806 282808 282814 282818 282820 282826 282830 282836 282844 366461
| A. | (1,3) | B. | (2,0) | C. | (6,1) | D. | (6,2) |