题目

— Can you____ a tent by yourself ?   —Sorry . It’s a little difficult for me.      A. put on         B. put up      C. put down      D. put out 答案:B已知抛物线与x轴交于A(-1,0)和B(3,0)两点,且与y轴交于点C(0,3).(1)求抛物线的解析式;(2)抛物线的对称轴方程和顶点M坐标;(3)求四边形ABMC的面积.
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