抛物线y=2(x-1)2+1的顶点坐标是( ) A.(1,1) B.(1,-1) 发布时间:2017-05-08 17:16 │ 来源:www.tikuol.com 题型:选择题 问题: 抛物线y=2(x-1)2+1的顶点坐标是( )A.(1,1)B.(1,-1)C.(-1,1)D.(-1,-1)
题型:选择题 –Why did Tom look upset yesterday? --Because all his classmates passed the test ________ him.A.includingB.exceptC.withD.without 查看答案