A:自己洗红领巾
B:我让妈妈装书包
C:我在房间里扫地
— How do you like the book?
— It's fantastic. I like those ______ in the book.
在直角坐标系xOy中,A(0,2)、B(﹣1,0),将△ABO经过旋转、平移变化后得到如图1所示的△BCD.