题目

—Could you tell me _________?   —You can take the No. 1 bus.   A. how can we get to Kunming Airport   B. how we can get to Kunming Airport  C. how do we get to Kunming Airport   D. how we got to Kunming Airport 答案：B 已知抛物线y＝4x2－11x－3，则它的对称轴是    ，与x轴的交点坐标是    ，与y轴的交点坐标是    .