已知点(a,8)在二次函数y=ax2的图象上,则a的值是( ) A.2 B.-2 C. 发布时间:2017-05-11 13:44 │ 来源:www.tikuol.com 题型:选择题 问题: 已知点(a,8)在二次函数y=ax2的图象上,则a的值是( )A.2B.-2C.±2D.±2
题型:选择题 When he left _____school, he got a job as _____secretary in a food company.A.the; aB.the; theC./; aD./; the 查看答案