题目

若A=x2－5x＋2，B=x2－5x-6，则A与B的大小关系是（   ） A.A>B     B.A=B     C.A<B     D.无法确定 答案：A听下面一段较长对话，回答以下小题。【1】What’s the time now?A. 8:00 pm. B. 7:50 pm. C. 7:20 pm【2】Where is the girl going?A. To the airport. B. To the bus stop. C. To the railway station.【3】How is she going there?A. By air. B. By taxi. C. By bus.