小强同学上学迟到受到班长小威同学的批评，对小威同学心存不满，故在同学中捏造说小威同学在新华书店盗窃书籍，小强同学的这一行为(      )

A. May I help you ?
B: Yes, please. I’d like the blue pants. Can I ____  them on?
A: Sure. Wow! They look very nice ____  you.
B: But I think ____  too small.
A: How do you like this ____ of pants?
B: Let me see. Oh, they are OK . How much are they?
A：They are 390 yuan.
B: 390 yuan ? Are you ____ ? I’ll think about them. Thank you all the same.

例：

I like chicken.

I don't like vegetables.

（Ⅰ）求a，b的值；

（Ⅱ）解关于x的不等式：ax²﹣（ac+b）x+bx＜0．