The team will move a speed of 15 kilometers per hour, and have a short break every 2 hours. During the break they will tell stories_______ English.
— __________ did you have for dinner last Sunday?
— I had fish. ( )
方程组x+y=22x+2y=3没有解,因此直线y=﹣x+2和直线y=﹣x+32在同一平面直角坐标系中的位置关系是( )