A:not steal; be set free
B:hadn't stolen; be set free
C:didn't steal; should be set free
D:hadn't stolen; set free
已知A(2,5),B(4,1).若点P(x,y)在线段AB上,则2x﹣y的最大值为( )
在“探究平面镜成像的特点”实验中。
We want ____ (eat) some fish and chips.