抛物线y=ax2+bx-1的对称轴为x=-1,且顶点在直线y=2x+4上,则抛物 发布时间:2017-04-29 18:08 │ 来源:www.tikuol.com 题型:选择题 问题: 抛物线y=ax2+bx-1的对称轴为x=-1,且顶点在直线y=2x+4上,则抛物线与此直线的交点坐标是( )A.(-53,23)B.(-1,2)C.(-1,-2)D.(-1,0)
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题型:选择题 I think ___is necessary ___ my 20-year-old daughter to have her own mobile.A.that; ofB.it; ofC.that; forD.it; for 查看答案