一元二次方程x2+x-6=0的二次项系数、一次项系数、常数项分别是( ) A.1 发布时间:2017-04-20 14:58 │ 来源:www.tikuol.com 题型:选择题 问题: 一元二次方程x2+x-6=0的二次项系数、一次项系数、常数项分别是( )A.1,1,6B.1,1,-6C.1,-1,6D.1,-1,-6
题型:选择题 --- I saw your uncle take a taxi to the airport. Why didn’t you drive him there ? --- I ___. But my car ____.A.would ; was fixedB.would have ; was fixedC.would have ; was being fixedD.did ; was being fixed 查看答案
题型:选择题 患者男性,65岁,结肠癌术后1年,近来出现乏力、消瘦伴肝区隐痛。B超发现肝右前叶单个直径5cm占位。否认肝炎史。如确诊为转移性肝癌,以下最不可能阳性的指标是A.甲胎蛋白B.谷草转氨酶C.谷丙转氨酶D.癌胚抗原E.乳酸脱氢酶 查看答案