A:What do you ____
B:I like robots.
A:What____do you like?
B:I like green.
A:How____are you?
B:I'm nine years old.
A:What do you____for breakfast?
B:I____some bread and milk.
猜谜语。
听起来它会跑,有趣又不吃草。孩子们见它喜欢,电脑见它把心闹。____
如图,直线y=﹣x+2与y=ax+b(a≠0且a,b为常数)的交点坐标为(3,﹣1),则关于x的不等式﹣x+2≥ax+b的解集为( )