Mother often does the laundry on Sunday.
A:does the cleaning
B:washes clothes
C:goes shopping
D:does some reading
画○,○比□多2个。
□ □ □
如图,OABC是一张放在平面直角坐标系中的矩形纸片,O为原点,点A在x轴的正半轴上,OA=10,OC=8,在OC上取一点D,将纸片沿AD翻折,使点O落在BC边上的点E处,求直线DE的解析式.