若t>0,那么12a+t与a2的大小关系是( )
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.