若关于x的一元二次方程kx2+4x+3=0有实根,则k的非负整数值是 . 发布时间:2017-04-18 20:50 │ 来源:www.tikuol.com 题型:填空题 问题: 若关于x的一元二次方程kx2+4x+3=0有实根,则k的非负整数值是 .
题型:填空题 — “Could we put off the meeting?” she asked.— “__________. ” He answered politely. “This is the only day everyone is available. ”A.Not likelyB.Not exactlyC.Not nearlyD.Not really 查看答案