将抛物线y=3x2向上平移3个单位后,所得抛物线的顶点坐标是( ) 发布时间:2017-04-19 16:39 │ 来源:www.tikuol.com 题型:填空题 问题: 将抛物线y=3x2向上平移3个单位后,所得抛物线的顶点坐标是( )
题型:填空题 Days later, my brother called to say he was all right, but _______say where he was. [ ]A. mustn't B. shouldn't C. wouldn't D. mightn't 查看答案